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Sweden-Number/dlls/winegstreamer/wg_parser.c

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/*
* GStreamer parser backend
*
* Copyright 2010 Maarten Lankhorst for CodeWeavers
* Copyright 2010 Aric Stewart for CodeWeavers
* Copyright 2019-2020 Zebediah Figura
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#if 0
#pragma makedep unix
#endif
#include "config.h"
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "gst_private.h"
#include "winternl.h"
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/audio/audio.h>
#include <gst/app/gstappsrc.h>
/* GStreamer callbacks may be called on threads not created by Wine, and
* therefore cannot access the Wine TEB. This means that we must use GStreamer
* debug logging instead of Wine debug logging. In order to be safe we forbid
* any use of Wine debug logging in this entire file. */
GST_DEBUG_CATEGORY_STATIC(wine);
#define GST_CAT_DEFAULT wine
struct wg_parser
{
BOOL (*init_gst)(struct wg_parser *parser);
struct wg_parser_stream **streams;
unsigned int stream_count;
GstElement *container, *appsrc, *decodebin;
GstBus *bus;
pthread_mutex_t mutex;
pthread_cond_t init_cond;
bool no_more_pads, has_duration, error;
pthread_cond_t read_cond;
struct
{
uint64_t offset;
uint32_t size;
bool pending;
} read_request;
bool flushing, sink_connected;
};
struct wg_parser_stream
{
struct wg_parser *parser;
GstPad *their_src, *post_sink, *post_src, *my_sink;
GstElement *flip;
GstSegment segment;
struct wg_format preferred_format, current_format;
pthread_cond_t event_cond, event_empty_cond;
struct wg_parser_event event;
GstBuffer *buffer;
GstMapInfo map_info;
bool flushing, eos, enabled, has_caps;
uint64_t duration;
};
static enum wg_audio_format wg_audio_format_from_gst(GstAudioFormat format)
{
switch (format)
{
case GST_AUDIO_FORMAT_U8:
return WG_AUDIO_FORMAT_U8;
case GST_AUDIO_FORMAT_S16LE:
return WG_AUDIO_FORMAT_S16LE;
case GST_AUDIO_FORMAT_S24LE:
return WG_AUDIO_FORMAT_S24LE;
case GST_AUDIO_FORMAT_S32LE:
return WG_AUDIO_FORMAT_S32LE;
case GST_AUDIO_FORMAT_F32LE:
return WG_AUDIO_FORMAT_F32LE;
case GST_AUDIO_FORMAT_F64LE:
return WG_AUDIO_FORMAT_F64LE;
default:
return WG_AUDIO_FORMAT_UNKNOWN;
}
}
static uint32_t wg_channel_position_from_gst(GstAudioChannelPosition position)
{
static const uint32_t position_map[] =
{
SPEAKER_FRONT_LEFT,
SPEAKER_FRONT_RIGHT,
SPEAKER_FRONT_CENTER,
SPEAKER_LOW_FREQUENCY,
SPEAKER_BACK_LEFT,
SPEAKER_BACK_RIGHT,
SPEAKER_FRONT_LEFT_OF_CENTER,
SPEAKER_FRONT_RIGHT_OF_CENTER,
SPEAKER_BACK_CENTER,
0,
SPEAKER_SIDE_LEFT,
SPEAKER_SIDE_RIGHT,
SPEAKER_TOP_FRONT_LEFT,
SPEAKER_TOP_FRONT_RIGHT,
SPEAKER_TOP_FRONT_CENTER,
SPEAKER_TOP_CENTER,
SPEAKER_TOP_BACK_LEFT,
SPEAKER_TOP_BACK_RIGHT,
0,
0,
SPEAKER_TOP_BACK_CENTER,
};
if (position < ARRAY_SIZE(position_map))
return position_map[position];
return 0;
}
static uint32_t wg_channel_mask_from_gst(const GstAudioInfo *info)
{
uint32_t mask = 0, position;
unsigned int i;
for (i = 0; i < GST_AUDIO_INFO_CHANNELS(info); ++i)
{
if (!(position = wg_channel_position_from_gst(GST_AUDIO_INFO_POSITION(info, i))))
{
GST_WARNING("Unsupported channel %#x.", GST_AUDIO_INFO_POSITION(info, i));
return 0;
}
/* Make sure it's also in WinMM order. WinMM mandates that channels be
* ordered, as it were, from least to most significant SPEAKER_* bit.
* Hence we fail if the current channel was already specified, or if any
* higher bit was already specified. */
if (mask & ~(position - 1))
{
GST_WARNING("Unsupported channel order.");
return 0;
}
mask |= position;
}
return mask;
}
static void wg_format_from_audio_info(struct wg_format *format, const GstAudioInfo *info)
{
format->major_type = WG_MAJOR_TYPE_AUDIO;
format->u.audio.format = wg_audio_format_from_gst(GST_AUDIO_INFO_FORMAT(info));
format->u.audio.channels = GST_AUDIO_INFO_CHANNELS(info);
format->u.audio.channel_mask = wg_channel_mask_from_gst(info);
format->u.audio.rate = GST_AUDIO_INFO_RATE(info);
}
static enum wg_video_format wg_video_format_from_gst(GstVideoFormat format)
{
switch (format)
{
case GST_VIDEO_FORMAT_BGRA:
return WG_VIDEO_FORMAT_BGRA;
case GST_VIDEO_FORMAT_BGRx:
return WG_VIDEO_FORMAT_BGRx;
case GST_VIDEO_FORMAT_BGR:
return WG_VIDEO_FORMAT_BGR;
case GST_VIDEO_FORMAT_RGB15:
return WG_VIDEO_FORMAT_RGB15;
case GST_VIDEO_FORMAT_RGB16:
return WG_VIDEO_FORMAT_RGB16;
case GST_VIDEO_FORMAT_AYUV:
return WG_VIDEO_FORMAT_AYUV;
case GST_VIDEO_FORMAT_I420:
return WG_VIDEO_FORMAT_I420;
case GST_VIDEO_FORMAT_NV12:
return WG_VIDEO_FORMAT_NV12;
case GST_VIDEO_FORMAT_UYVY:
return WG_VIDEO_FORMAT_UYVY;
case GST_VIDEO_FORMAT_YUY2:
return WG_VIDEO_FORMAT_YUY2;
case GST_VIDEO_FORMAT_YV12:
return WG_VIDEO_FORMAT_YV12;
case GST_VIDEO_FORMAT_YVYU:
return WG_VIDEO_FORMAT_YVYU;
default:
return WG_VIDEO_FORMAT_UNKNOWN;
}
}
static void wg_format_from_video_info(struct wg_format *format, const GstVideoInfo *info)
{
format->major_type = WG_MAJOR_TYPE_VIDEO;
format->u.video.format = wg_video_format_from_gst(GST_VIDEO_INFO_FORMAT(info));
format->u.video.width = GST_VIDEO_INFO_WIDTH(info);
format->u.video.height = GST_VIDEO_INFO_HEIGHT(info);
format->u.video.fps_n = GST_VIDEO_INFO_FPS_N(info);
format->u.video.fps_d = GST_VIDEO_INFO_FPS_D(info);
}
static void wg_format_from_caps_audio_mpeg(struct wg_format *format, const GstCaps *caps)
{
const GstStructure *structure = gst_caps_get_structure(caps, 0);
gint layer, channels, rate;
if (!gst_structure_get_int(structure, "layer", &layer))
{
GST_WARNING("Missing \"layer\" value.");
return;
}
if (!gst_structure_get_int(structure, "channels", &channels))
{
GST_WARNING("Missing \"channels\" value.");
return;
}
if (!gst_structure_get_int(structure, "rate", &rate))
{
GST_WARNING("Missing \"rate\" value.");
return;
}
format->major_type = WG_MAJOR_TYPE_AUDIO;
if (layer == 1)
format->u.audio.format = WG_AUDIO_FORMAT_MPEG1_LAYER1;
else if (layer == 2)
format->u.audio.format = WG_AUDIO_FORMAT_MPEG1_LAYER2;
else if (layer == 3)
format->u.audio.format = WG_AUDIO_FORMAT_MPEG1_LAYER3;
format->u.audio.channels = channels;
format->u.audio.rate = rate;
}
static void wg_format_from_caps_video_cinepak(struct wg_format *format, const GstCaps *caps)
{
const GstStructure *structure = gst_caps_get_structure(caps, 0);
gint width, height, fps_n, fps_d;
if (!gst_structure_get_int(structure, "width", &width))
{
GST_WARNING("Missing \"width\" value.");
return;
}
if (!gst_structure_get_int(structure, "height", &height))
{
GST_WARNING("Missing \"height\" value.");
return;
}
if (!gst_structure_get_fraction(structure, "framerate", &fps_n, &fps_d))
{
fps_n = 0;
fps_d = 1;
}
format->major_type = WG_MAJOR_TYPE_VIDEO;
format->u.video.format = WG_VIDEO_FORMAT_CINEPAK;
format->u.video.width = width;
format->u.video.height = height;
format->u.video.fps_n = fps_n;
format->u.video.fps_d = fps_d;
}
static void wg_format_from_caps(struct wg_format *format, const GstCaps *caps)
{
const GstStructure *structure = gst_caps_get_structure(caps, 0);
const char *name = gst_structure_get_name(structure);
memset(format, 0, sizeof(*format));
if (!strcmp(name, "audio/x-raw"))
{
GstAudioInfo info;
if (gst_audio_info_from_caps(&info, caps))
wg_format_from_audio_info(format, &info);
}
else if (!strcmp(name, "video/x-raw"))
{
GstVideoInfo info;
if (gst_video_info_from_caps(&info, caps))
wg_format_from_video_info(format, &info);
}
else if (!strcmp(name, "audio/mpeg"))
{
wg_format_from_caps_audio_mpeg(format, caps);
}
else if (!strcmp(name, "video/x-cinepak"))
{
wg_format_from_caps_video_cinepak(format, caps);
}
else
{
gchar *str = gst_caps_to_string(caps);
GST_FIXME("Unhandled caps %s.", str);
g_free(str);
}
}
static GstAudioFormat wg_audio_format_to_gst(enum wg_audio_format format)
{
switch (format)
{
case WG_AUDIO_FORMAT_U8: return GST_AUDIO_FORMAT_U8;
case WG_AUDIO_FORMAT_S16LE: return GST_AUDIO_FORMAT_S16LE;
case WG_AUDIO_FORMAT_S24LE: return GST_AUDIO_FORMAT_S24LE;
case WG_AUDIO_FORMAT_S32LE: return GST_AUDIO_FORMAT_S32LE;
case WG_AUDIO_FORMAT_F32LE: return GST_AUDIO_FORMAT_F32LE;
case WG_AUDIO_FORMAT_F64LE: return GST_AUDIO_FORMAT_F64LE;
default: return GST_AUDIO_FORMAT_UNKNOWN;
}
}
static void wg_channel_mask_to_gst(GstAudioChannelPosition *positions, uint32_t mask, uint32_t channel_count)
{
const uint32_t orig_mask = mask;
unsigned int i;
DWORD bit;
static const GstAudioChannelPosition position_map[] =
{
GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
GST_AUDIO_CHANNEL_POSITION_LFE1,
GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT,
GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER,
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER,
GST_AUDIO_CHANNEL_POSITION_REAR_CENTER,
GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT,
GST_AUDIO_CHANNEL_POSITION_TOP_CENTER,
GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_LEFT,
GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_CENTER,
GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_RIGHT,
GST_AUDIO_CHANNEL_POSITION_TOP_REAR_LEFT,
GST_AUDIO_CHANNEL_POSITION_TOP_REAR_CENTER,
GST_AUDIO_CHANNEL_POSITION_TOP_REAR_RIGHT,
};
for (i = 0; i < channel_count; ++i)
{
positions[i] = GST_AUDIO_CHANNEL_POSITION_NONE;
if (BitScanForward(&bit, mask))
{
if (bit < ARRAY_SIZE(position_map))
positions[i] = position_map[bit];
else
GST_WARNING("Invalid channel mask %#x.\n", orig_mask);
mask &= ~(1 << bit);
}
else
{
GST_WARNING("Incomplete channel mask %#x.\n", orig_mask);
}
}
}
static GstCaps *wg_format_to_caps_audio(const struct wg_format *format)
{
GstAudioChannelPosition positions[32];
GstAudioFormat audio_format;
GstAudioInfo info;
if ((audio_format = wg_audio_format_to_gst(format->u.audio.format)) == GST_AUDIO_FORMAT_UNKNOWN)
return NULL;
wg_channel_mask_to_gst(positions, format->u.audio.channel_mask, format->u.audio.channels);
gst_audio_info_set_format(&info, audio_format, format->u.audio.rate, format->u.audio.channels, positions);
return gst_audio_info_to_caps(&info);
}
static GstVideoFormat wg_video_format_to_gst(enum wg_video_format format)
{
switch (format)
{
case WG_VIDEO_FORMAT_BGRA: return GST_VIDEO_FORMAT_BGRA;
case WG_VIDEO_FORMAT_BGRx: return GST_VIDEO_FORMAT_BGRx;
case WG_VIDEO_FORMAT_BGR: return GST_VIDEO_FORMAT_BGR;
case WG_VIDEO_FORMAT_RGB15: return GST_VIDEO_FORMAT_RGB15;
case WG_VIDEO_FORMAT_RGB16: return GST_VIDEO_FORMAT_RGB16;
case WG_VIDEO_FORMAT_AYUV: return GST_VIDEO_FORMAT_AYUV;
case WG_VIDEO_FORMAT_I420: return GST_VIDEO_FORMAT_I420;
case WG_VIDEO_FORMAT_NV12: return GST_VIDEO_FORMAT_NV12;
case WG_VIDEO_FORMAT_UYVY: return GST_VIDEO_FORMAT_UYVY;
case WG_VIDEO_FORMAT_YUY2: return GST_VIDEO_FORMAT_YUY2;
case WG_VIDEO_FORMAT_YV12: return GST_VIDEO_FORMAT_YV12;
case WG_VIDEO_FORMAT_YVYU: return GST_VIDEO_FORMAT_YVYU;
default: return GST_VIDEO_FORMAT_UNKNOWN;
}
}
static GstCaps *wg_format_to_caps_video(const struct wg_format *format)
{
GstVideoFormat video_format;
GstVideoInfo info;
unsigned int i;
GstCaps *caps;
if ((video_format = wg_video_format_to_gst(format->u.video.format)) == GST_VIDEO_FORMAT_UNKNOWN)
return NULL;
gst_video_info_set_format(&info, video_format, format->u.video.width, format->u.video.height);
if ((caps = gst_video_info_to_caps(&info)))
{
/* Clear some fields that shouldn't prevent us from connecting. */
for (i = 0; i < gst_caps_get_size(caps); ++i)
{
gst_structure_remove_fields(gst_caps_get_structure(caps, i),
"framerate", "pixel-aspect-ratio", "colorimetry", "chroma-site", NULL);
}
}
return caps;
}
static GstCaps *wg_format_to_caps(const struct wg_format *format)
{
switch (format->major_type)
{
case WG_MAJOR_TYPE_UNKNOWN:
return NULL;
case WG_MAJOR_TYPE_AUDIO:
return wg_format_to_caps_audio(format);
case WG_MAJOR_TYPE_VIDEO:
return wg_format_to_caps_video(format);
}
assert(0);
return NULL;
}
static bool wg_format_compare(const struct wg_format *a, const struct wg_format *b)
{
if (a->major_type != b->major_type)
return false;
switch (a->major_type)
{
case WG_MAJOR_TYPE_UNKNOWN:
return false;
case WG_MAJOR_TYPE_AUDIO:
return a->u.audio.format == b->u.audio.format
&& a->u.audio.channels == b->u.audio.channels
&& a->u.audio.rate == b->u.audio.rate;
case WG_MAJOR_TYPE_VIDEO:
/* Do not compare FPS. */
return a->u.video.format == b->u.video.format
&& a->u.video.width == b->u.video.width
&& a->u.video.height == b->u.video.height;
}
assert(0);
return false;
}
static uint32_t CDECL wg_parser_get_stream_count(struct wg_parser *parser)
{
return parser->stream_count;
}
static struct wg_parser_stream * CDECL wg_parser_get_stream(struct wg_parser *parser, uint32_t index)
{
return parser->streams[index];
}
static void CDECL wg_parser_begin_flush(struct wg_parser *parser)
{
unsigned int i;
pthread_mutex_lock(&parser->mutex);
parser->flushing = true;
pthread_mutex_unlock(&parser->mutex);
for (i = 0; i < parser->stream_count; ++i)
{
if (parser->streams[i]->enabled)
pthread_cond_signal(&parser->streams[i]->event_cond);
}
}
static void CDECL wg_parser_end_flush(struct wg_parser *parser)
{
pthread_mutex_lock(&parser->mutex);
parser->flushing = false;
pthread_mutex_unlock(&parser->mutex);
}
static bool CDECL wg_parser_get_next_read_offset(struct wg_parser *parser,
uint64_t *offset, uint32_t *size)
{
pthread_mutex_lock(&parser->mutex);
while (parser->sink_connected && !parser->read_request.pending)
pthread_cond_wait(&parser->read_cond, &parser->mutex);
if (!parser->sink_connected)
{
pthread_mutex_unlock(&parser->mutex);
return false;
}
*offset = parser->read_request.offset;
*size = parser->read_request.size;
pthread_mutex_unlock(&parser->mutex);
return true;
}
static void CDECL wg_parser_push_data(struct wg_parser *parser,
const void *data, uint32_t size)
{
GstMessage *message;
GstFlowReturn ret;
GstBuffer *buffer;
GError *error;
if (!data)
{
pthread_mutex_lock(&parser->mutex);
if (parser->sink_connected)
{
error = g_error_new(G_FILE_ERROR, G_FILE_ERROR_FAILED, "WG-Parser client failed to read data at offset %" G_GUINT64_FORMAT, parser->read_request.offset);
message = gst_message_new_error(NULL, error, "");
gst_bus_post(parser->bus, message);
parser->read_request.pending = false;
}
pthread_mutex_unlock(&parser->mutex);
return;
}
if (!size)
{
pthread_mutex_lock(&parser->mutex);
if (parser->sink_connected)
g_signal_emit_by_name(G_OBJECT(parser->appsrc), "end-of-stream", &ret);
parser->read_request.pending = false;
pthread_mutex_unlock(&parser->mutex);
return;
}
/* We will always perform an extra blit here. We can avoid this in some
* cases by wrapping a client-allocated buffer using
* gst_buffer_new_wrapped(). However, releasing the memory is non-trivial,
* since GStreamer will hold onto a reference for an arbitrarily long
* period of time. Until there's evidence to suggest that the blit causes a
* performance problem, leave it alone. */
buffer = gst_buffer_new_and_alloc(size);
gst_buffer_fill(buffer, 0, data, size);
pthread_mutex_lock(&parser->mutex);
if (!parser->sink_connected)
{
pthread_mutex_unlock(&parser->mutex);
gst_buffer_unref(buffer);
return;
}
assert(parser->read_request.pending);
GST_BUFFER_OFFSET(buffer) = parser->read_request.offset;
g_signal_emit_by_name(G_OBJECT(parser->appsrc), "push-buffer", buffer, &ret);
/* In random-access mode, GST_FLOW_EOS shouldn't be returned. */
assert(ret == GST_FLOW_OK || ret == GST_FLOW_FLUSHING);
if (ret == GST_FLOW_OK)
parser->read_request.offset += size;
parser->read_request.pending = false;
pthread_mutex_unlock(&parser->mutex);
}
static void CDECL wg_parser_set_unlimited_buffering(struct wg_parser *parser)
{
g_object_set(parser->decodebin, "max-size-buffers", G_MAXUINT, NULL);
g_object_set(parser->decodebin, "max-size-time", G_MAXUINT64, NULL);
g_object_set(parser->decodebin, "max-size-bytes", G_MAXUINT, NULL);
}
static void CDECL wg_parser_stream_get_preferred_format(struct wg_parser_stream *stream, struct wg_format *format)
{
*format = stream->preferred_format;
}
static void CDECL wg_parser_stream_enable(struct wg_parser_stream *stream, const struct wg_format *format)
{
stream->current_format = *format;
stream->enabled = true;
if (format->major_type == WG_MAJOR_TYPE_VIDEO)
{
switch (format->u.video.format)
{
case WG_VIDEO_FORMAT_BGRA:
case WG_VIDEO_FORMAT_BGRx:
case WG_VIDEO_FORMAT_BGR:
case WG_VIDEO_FORMAT_RGB15:
case WG_VIDEO_FORMAT_RGB16:
gst_util_set_object_arg(G_OBJECT(stream->flip), "method", "vertical-flip");
break;
case WG_VIDEO_FORMAT_AYUV:
case WG_VIDEO_FORMAT_I420:
case WG_VIDEO_FORMAT_NV12:
case WG_VIDEO_FORMAT_UYVY:
case WG_VIDEO_FORMAT_YUY2:
case WG_VIDEO_FORMAT_YV12:
case WG_VIDEO_FORMAT_YVYU:
case WG_VIDEO_FORMAT_UNKNOWN:
case WG_VIDEO_FORMAT_CINEPAK:
gst_util_set_object_arg(G_OBJECT(stream->flip), "method", "none");
break;
}
}
gst_pad_push_event(stream->my_sink, gst_event_new_reconfigure());
}
static void CDECL wg_parser_stream_disable(struct wg_parser_stream *stream)
{
stream->enabled = false;
}
static bool CDECL wg_parser_stream_get_event(struct wg_parser_stream *stream, struct wg_parser_event *event)
{
struct wg_parser *parser = stream->parser;
pthread_mutex_lock(&parser->mutex);
while (!parser->flushing && stream->event.type == WG_PARSER_EVENT_NONE)
pthread_cond_wait(&stream->event_cond, &parser->mutex);
if (parser->flushing)
{
pthread_mutex_unlock(&parser->mutex);
GST_DEBUG("Filter is flushing.\n");
return false;
}
*event = stream->event;
if (stream->event.type != WG_PARSER_EVENT_BUFFER)
{
stream->event.type = WG_PARSER_EVENT_NONE;
pthread_cond_signal(&stream->event_empty_cond);
}
pthread_mutex_unlock(&parser->mutex);
return true;
}
static bool CDECL wg_parser_stream_copy_buffer(struct wg_parser_stream *stream,
void *data, uint32_t offset, uint32_t size)
{
struct wg_parser *parser = stream->parser;
pthread_mutex_lock(&parser->mutex);
if (!stream->buffer)
{
pthread_mutex_unlock(&parser->mutex);
return false;
}
assert(stream->event.type == WG_PARSER_EVENT_BUFFER);
assert(offset < stream->map_info.size);
assert(offset + size <= stream->map_info.size);
memcpy(data, stream->map_info.data + offset, size);
pthread_mutex_unlock(&parser->mutex);
return true;
}
static void CDECL wg_parser_stream_release_buffer(struct wg_parser_stream *stream)
{
struct wg_parser *parser = stream->parser;
pthread_mutex_lock(&parser->mutex);
assert(stream->event.type == WG_PARSER_EVENT_BUFFER);
gst_buffer_unmap(stream->buffer, &stream->map_info);
gst_buffer_unref(stream->buffer);
stream->buffer = NULL;
stream->event.type = WG_PARSER_EVENT_NONE;
pthread_mutex_unlock(&parser->mutex);
pthread_cond_signal(&stream->event_empty_cond);
}
static uint64_t CDECL wg_parser_stream_get_duration(struct wg_parser_stream *stream)
{
return stream->duration;
}
static bool CDECL wg_parser_stream_seek(struct wg_parser_stream *stream, double rate,
uint64_t start_pos, uint64_t stop_pos, DWORD start_flags, DWORD stop_flags)
{
GstSeekType start_type = GST_SEEK_TYPE_SET, stop_type = GST_SEEK_TYPE_SET;
GstSeekFlags flags = 0;
if (start_flags & AM_SEEKING_SeekToKeyFrame)
flags |= GST_SEEK_FLAG_KEY_UNIT;
if (start_flags & AM_SEEKING_Segment)
flags |= GST_SEEK_FLAG_SEGMENT;
if (!(start_flags & AM_SEEKING_NoFlush))
flags |= GST_SEEK_FLAG_FLUSH;
if ((start_flags & AM_SEEKING_PositioningBitsMask) == AM_SEEKING_NoPositioning)
start_type = GST_SEEK_TYPE_NONE;
if ((stop_flags & AM_SEEKING_PositioningBitsMask) == AM_SEEKING_NoPositioning)
stop_type = GST_SEEK_TYPE_NONE;
return gst_pad_push_event(stream->my_sink, gst_event_new_seek(rate,
GST_FORMAT_TIME, flags, start_type, start_pos * 100, stop_type, stop_pos * 100));
}
static void CDECL wg_parser_stream_notify_qos(struct wg_parser_stream *stream,
bool underflow, double proportion, int64_t diff, uint64_t timestamp)
{
GstClockTime stream_time;
GstEvent *event;
/* We return timestamps in stream time, i.e. relative to the start of the
* file (or other medium), but gst_event_new_qos() expects the timestamp in
* running time. */
stream_time = gst_segment_to_running_time(&stream->segment, GST_FORMAT_TIME, timestamp * 100);
if (stream_time == -1)
{
/* This can happen legitimately if the sample falls outside of the
* segment bounds. GStreamer elements shouldn't present the sample in
* that case, but DirectShow doesn't care. */
GST_LOG("Ignoring QoS event.\n");
return;
}
if (!(event = gst_event_new_qos(underflow ? GST_QOS_TYPE_UNDERFLOW : GST_QOS_TYPE_OVERFLOW,
proportion, diff * 100, stream_time)))
GST_ERROR("Failed to create QOS event.\n");
gst_pad_push_event(stream->my_sink, event);
}
static GstAutoplugSelectResult autoplug_select_cb(GstElement *bin, GstPad *pad,
GstCaps *caps, GstElementFactory *fact, gpointer user)
{
const char *name = gst_element_factory_get_longname(fact);
GST_INFO("Using \"%s\".", name);
if (strstr(name, "Player protection"))
{
GST_WARNING("Blacklisted a/52 decoder because it only works in Totem.");
return GST_AUTOPLUG_SELECT_SKIP;
}
if (!strcmp(name, "Fluendo Hardware Accelerated Video Decoder"))
{
GST_WARNING("Disabled video acceleration since it breaks in wine.");
return GST_AUTOPLUG_SELECT_SKIP;
}
return GST_AUTOPLUG_SELECT_TRY;
}
static void no_more_pads_cb(GstElement *element, gpointer user)
{
struct wg_parser *parser = user;
GST_DEBUG("parser %p.", parser);
pthread_mutex_lock(&parser->mutex);
parser->no_more_pads = true;
pthread_mutex_unlock(&parser->mutex);
pthread_cond_signal(&parser->init_cond);
}
static GstFlowReturn queue_stream_event(struct wg_parser_stream *stream,
const struct wg_parser_event *event, GstBuffer *buffer)
{
struct wg_parser *parser = stream->parser;
/* Unlike request_buffer_src() [q.v.], we need to watch for GStreamer
* flushes here. The difference is that we can be blocked by the streaming
* thread not running (or itself flushing on the DirectShow side).
* request_buffer_src() can only be blocked by the upstream source, and that
* is solved by flushing the upstream source. */
pthread_mutex_lock(&parser->mutex);
while (!stream->flushing && stream->event.type != WG_PARSER_EVENT_NONE)
pthread_cond_wait(&stream->event_empty_cond, &parser->mutex);
if (stream->flushing)
{
pthread_mutex_unlock(&parser->mutex);
GST_DEBUG("Filter is flushing; discarding event.");
return GST_FLOW_FLUSHING;
}
if (buffer)
{
assert(GST_IS_BUFFER(buffer));
if (!gst_buffer_map(buffer, &stream->map_info, GST_MAP_READ))
{
pthread_mutex_unlock(&parser->mutex);
GST_ERROR("Failed to map buffer.\n");
return GST_FLOW_ERROR;
}
}
stream->event = *event;
stream->buffer = buffer;
pthread_mutex_unlock(&parser->mutex);
pthread_cond_signal(&stream->event_cond);
GST_LOG("Event queued.");
return GST_FLOW_OK;
}
static gboolean sink_event_cb(GstPad *pad, GstObject *parent, GstEvent *event)
{
struct wg_parser_stream *stream = gst_pad_get_element_private(pad);
struct wg_parser *parser = stream->parser;
GST_LOG("stream %p, type \"%s\".", stream, GST_EVENT_TYPE_NAME(event));
switch (event->type)
{
case GST_EVENT_SEGMENT:
if (stream->enabled)
{
struct wg_parser_event stream_event;
const GstSegment *segment;
gst_event_parse_segment(event, &segment);
if (segment->format != GST_FORMAT_TIME)
{
GST_FIXME("Unhandled format \"%s\".", gst_format_get_name(segment->format));
break;
}
gst_segment_copy_into(segment, &stream->segment);
stream_event.type = WG_PARSER_EVENT_SEGMENT;
stream_event.u.segment.position = segment->position / 100;
stream_event.u.segment.stop = segment->stop / 100;
stream_event.u.segment.rate = segment->rate * segment->applied_rate;
queue_stream_event(stream, &stream_event, NULL);
}
break;
case GST_EVENT_EOS:
if (stream->enabled)
{
struct wg_parser_event stream_event;
stream_event.type = WG_PARSER_EVENT_EOS;
queue_stream_event(stream, &stream_event, NULL);
}
else
{
pthread_mutex_lock(&parser->mutex);
stream->eos = true;
pthread_mutex_unlock(&parser->mutex);
pthread_cond_signal(&parser->init_cond);
}
break;
case GST_EVENT_FLUSH_START:
if (stream->enabled)
{
pthread_mutex_lock(&parser->mutex);
stream->flushing = true;
pthread_cond_signal(&stream->event_empty_cond);
if (stream->event.type == WG_PARSER_EVENT_BUFFER)
{
gst_buffer_unmap(stream->buffer, &stream->map_info);
gst_buffer_unref(stream->buffer);
stream->buffer = NULL;
}
stream->event.type = WG_PARSER_EVENT_NONE;
pthread_mutex_unlock(&parser->mutex);
}
break;
case GST_EVENT_FLUSH_STOP:
{
gboolean reset_time;
gst_event_parse_flush_stop(event, &reset_time);
if (reset_time)
gst_segment_init(&stream->segment, GST_FORMAT_UNDEFINED);
if (stream->enabled)
{
pthread_mutex_lock(&parser->mutex);
stream->flushing = false;
pthread_mutex_unlock(&parser->mutex);
}
break;
}
case GST_EVENT_CAPS:
{
GstCaps *caps;
gst_event_parse_caps(event, &caps);
pthread_mutex_lock(&parser->mutex);
wg_format_from_caps(&stream->preferred_format, caps);
stream->has_caps = true;
pthread_mutex_unlock(&parser->mutex);
pthread_cond_signal(&parser->init_cond);
break;
}
default:
GST_WARNING("Ignoring \"%s\" event.", GST_EVENT_TYPE_NAME(event));
}
gst_event_unref(event);
return TRUE;
}
static GstFlowReturn sink_chain_cb(GstPad *pad, GstObject *parent, GstBuffer *buffer)
{
struct wg_parser_stream *stream = gst_pad_get_element_private(pad);
struct wg_parser_event stream_event;
GstFlowReturn ret;
GST_LOG("stream %p, buffer %p.", stream, buffer);
if (!stream->enabled)
{
gst_buffer_unref(buffer);
return GST_FLOW_OK;
}
stream_event.type = WG_PARSER_EVENT_BUFFER;
/* FIXME: Should we use gst_segment_to_stream_time_full()? Under what
* circumstances is the stream time not equal to the buffer PTS? Note that
* this will need modification to wg_parser_stream_notify_qos() as well. */
if ((stream_event.u.buffer.has_pts = GST_BUFFER_PTS_IS_VALID(buffer)))
stream_event.u.buffer.pts = GST_BUFFER_PTS(buffer) / 100;
if ((stream_event.u.buffer.has_duration = GST_BUFFER_DURATION_IS_VALID(buffer)))
stream_event.u.buffer.duration = GST_BUFFER_DURATION(buffer) / 100;
stream_event.u.buffer.discontinuity = GST_BUFFER_FLAG_IS_SET(buffer, GST_BUFFER_FLAG_DISCONT);
stream_event.u.buffer.preroll = GST_BUFFER_FLAG_IS_SET(buffer, GST_BUFFER_FLAG_LIVE);
stream_event.u.buffer.delta = GST_BUFFER_FLAG_IS_SET(buffer, GST_BUFFER_FLAG_DELTA_UNIT);
stream_event.u.buffer.size = gst_buffer_get_size(buffer);
/* Transfer our reference to the buffer to the stream object. */
if ((ret = queue_stream_event(stream, &stream_event, buffer)) != GST_FLOW_OK)
gst_buffer_unref(buffer);
return ret;
}
static gboolean sink_query_cb(GstPad *pad, GstObject *parent, GstQuery *query)
{
struct wg_parser_stream *stream = gst_pad_get_element_private(pad);
GST_LOG("stream %p, type \"%s\".", stream, gst_query_type_get_name(query->type));
switch (query->type)
{
case GST_QUERY_CAPS:
{
GstCaps *caps, *filter, *temp;
gst_query_parse_caps(query, &filter);
if (stream->enabled)
caps = wg_format_to_caps(&stream->current_format);
else
caps = gst_caps_new_any();
if (!caps)
return FALSE;
if (filter)
{
temp = gst_caps_intersect(caps, filter);
gst_caps_unref(caps);
caps = temp;
}
gst_query_set_caps_result(query, caps);
gst_caps_unref(caps);
return TRUE;
}
case GST_QUERY_ACCEPT_CAPS:
{
struct wg_format format;
gboolean ret = TRUE;
GstCaps *caps;
if (!stream->enabled)
{
gst_query_set_accept_caps_result(query, TRUE);
return TRUE;
}
gst_query_parse_accept_caps(query, &caps);
wg_format_from_caps(&format, caps);
ret = wg_format_compare(&format, &stream->current_format);
if (!ret && gst_debug_category_get_threshold(GST_CAT_DEFAULT) >= GST_LEVEL_WARNING)
{
gchar *str = gst_caps_to_string(caps);
GST_WARNING("Rejecting caps \"%s\".", str);
g_free(str);
}
gst_query_set_accept_caps_result(query, ret);
return TRUE;
}
default:
return gst_pad_query_default (pad, parent, query);
}
}
static GstElement *create_element(const char *name, const char *plugin_set)
{
GstElement *element;
if (!(element = gst_element_factory_make(name, NULL)))
fprintf(stderr, "winegstreamer: failed to create %s, are %u-bit GStreamer \"%s\" plugins installed?\n",
name, 8 * (unsigned int)sizeof(void *), plugin_set);
return element;
}
static struct wg_parser_stream *create_stream(struct wg_parser *parser)
{
struct wg_parser_stream *stream, **new_array;
char pad_name[19];
if (!(new_array = realloc(parser->streams, (parser->stream_count + 1) * sizeof(*parser->streams))))
return NULL;
parser->streams = new_array;
if (!(stream = calloc(1, sizeof(*stream))))
return NULL;
gst_segment_init(&stream->segment, GST_FORMAT_UNDEFINED);
stream->parser = parser;
pthread_cond_init(&stream->event_cond, NULL);
pthread_cond_init(&stream->event_empty_cond, NULL);
sprintf(pad_name, "qz_sink_%u", parser->stream_count);
stream->my_sink = gst_pad_new(pad_name, GST_PAD_SINK);
gst_pad_set_element_private(stream->my_sink, stream);
gst_pad_set_chain_function(stream->my_sink, sink_chain_cb);
gst_pad_set_event_function(stream->my_sink, sink_event_cb);
gst_pad_set_query_function(stream->my_sink, sink_query_cb);
parser->streams[parser->stream_count++] = stream;
return stream;
}
static void free_stream(struct wg_parser_stream *stream)
{
if (stream->their_src)
{
if (stream->post_sink)
{
gst_pad_unlink(stream->their_src, stream->post_sink);
gst_pad_unlink(stream->post_src, stream->my_sink);
gst_object_unref(stream->post_src);
gst_object_unref(stream->post_sink);
stream->post_src = stream->post_sink = NULL;
}
else
gst_pad_unlink(stream->their_src, stream->my_sink);
gst_object_unref(stream->their_src);
}
gst_object_unref(stream->my_sink);
pthread_cond_destroy(&stream->event_cond);
pthread_cond_destroy(&stream->event_empty_cond);
free(stream);
}
static void pad_added_cb(GstElement *element, GstPad *pad, gpointer user)
{
struct wg_parser *parser = user;
struct wg_parser_stream *stream;
const char *name;
GstCaps *caps;
int ret;
GST_LOG("parser %p, element %p, pad %p.", parser, element, pad);
if (gst_pad_is_linked(pad))
return;
caps = gst_pad_query_caps(pad, NULL);
name = gst_structure_get_name(gst_caps_get_structure(caps, 0));
if (!(stream = create_stream(parser)))
goto out;
if (!strcmp(name, "video/x-raw"))
{
GstElement *deinterlace, *vconv, *flip, *vconv2;
/* DirectShow can express interlaced video, but downstream filters can't
* necessarily consume it. In particular, the video renderer can't. */
if (!(deinterlace = create_element("deinterlace", "good")))
goto out;
/* decodebin considers many YUV formats to be "raw", but some quartz
* filters can't handle those. Also, videoflip can't handle all "raw"
* formats either. Add a videoconvert to swap color spaces. */
if (!(vconv = create_element("videoconvert", "base")))
goto out;
/* GStreamer outputs RGB video top-down, but DirectShow expects bottom-up. */
if (!(flip = create_element("videoflip", "good")))
goto out;
/* videoflip does not support 15 and 16-bit RGB so add a second videoconvert
* to do the final conversion. */
if (!(vconv2 = create_element("videoconvert", "base")))
goto out;
/* The bin takes ownership of these elements. */
gst_bin_add(GST_BIN(parser->container), deinterlace);
gst_element_sync_state_with_parent(deinterlace);
gst_bin_add(GST_BIN(parser->container), vconv);
gst_element_sync_state_with_parent(vconv);
gst_bin_add(GST_BIN(parser->container), flip);
gst_element_sync_state_with_parent(flip);
gst_bin_add(GST_BIN(parser->container), vconv2);
gst_element_sync_state_with_parent(vconv2);
gst_element_link(deinterlace, vconv);
gst_element_link(vconv, flip);
gst_element_link(flip, vconv2);
stream->post_sink = gst_element_get_static_pad(deinterlace, "sink");
stream->post_src = gst_element_get_static_pad(vconv2, "src");
stream->flip = flip;
}
else if (!strcmp(name, "audio/x-raw"))
{
GstElement *convert;
/* Currently our dsound can't handle 64-bit formats or all
* surround-sound configurations. Native dsound can't always handle
* 64-bit formats either. Add an audioconvert to allow changing bit
* depth and channel count. */
if (!(convert = create_element("audioconvert", "base")))
goto out;
gst_bin_add(GST_BIN(parser->container), convert);
gst_element_sync_state_with_parent(convert);
stream->post_sink = gst_element_get_static_pad(convert, "sink");
stream->post_src = gst_element_get_static_pad(convert, "src");
}
if (stream->post_sink)
{
if ((ret = gst_pad_link(pad, stream->post_sink)) < 0)
{
GST_ERROR("Failed to link decodebin source pad to post-processing elements, error %s.",
gst_pad_link_get_name(ret));
gst_object_unref(stream->post_sink);
stream->post_sink = NULL;
goto out;
}
if ((ret = gst_pad_link(stream->post_src, stream->my_sink)) < 0)
{
GST_ERROR("Failed to link post-processing elements to our sink pad, error %s.",
gst_pad_link_get_name(ret));
gst_object_unref(stream->post_src);
stream->post_src = NULL;
gst_object_unref(stream->post_sink);
stream->post_sink = NULL;
goto out;
}
}
else if ((ret = gst_pad_link(pad, stream->my_sink)) < 0)
{
GST_ERROR("Failed to link decodebin source pad to our sink pad, error %s.",
gst_pad_link_get_name(ret));
goto out;
}
gst_pad_set_active(stream->my_sink, 1);
gst_object_ref(stream->their_src = pad);
out:
gst_caps_unref(caps);
}
static void pad_removed_cb(GstElement *element, GstPad *pad, gpointer user)
{
struct wg_parser *parser = user;
unsigned int i;
char *name;
GST_LOG("parser %p, element %p, pad %p.", parser, element, pad);
for (i = 0; i < parser->stream_count; ++i)
{
struct wg_parser_stream *stream = parser->streams[i];
if (stream->their_src == pad)
{
if (stream->post_sink)
gst_pad_unlink(stream->their_src, stream->post_sink);
else
gst_pad_unlink(stream->their_src, stream->my_sink);
gst_object_unref(stream->their_src);
stream->their_src = NULL;
return;
}
}
name = gst_pad_get_name(pad);
GST_WARNING("No pin matching pad \"%s\" found.", name);
g_free(name);
}
static void src_need_data(GstElement *appsrc, guint length, gpointer user)
{
struct wg_parser *parser = user;
guint64 queued_bytes;
pthread_mutex_lock(&parser->mutex);
/* As of GStreamer 1.18, appsrc suffers from a race condition. When in
* random access mode (and when underlyingly in pull mode), appsrc may
* spuriously send multiple requests for the same offset and length. If it
* receives the same buffer twice (or consecutive buffers), it will blindly
* queue them and satisfy subsequent getrange requests from downstream
* elements with the wrong buffers.
*
* Internally, this function is called inside of a loop, which also pops
* buffers from the internal queue. Accordingly we can safely treat this
* request as spurious by checking if we have already sent data; since the
* data is consumed by this thread it will not have been consumed yet.
*
* The bug is documented in greater detail here:
*
* https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/issues/937
*/
g_object_get(G_OBJECT(appsrc), "current-level-bytes", &queued_bytes, NULL);
if (queued_bytes)
{
pthread_mutex_unlock(&parser->mutex);
return;
}
parser->read_request.pending = true;
parser->read_request.size = length;
pthread_cond_signal(&parser->read_cond);
pthread_mutex_unlock(&parser->mutex);
}
static gboolean src_seek_data(GstElement *appsrc, guint64 offset, gpointer user)
{
struct wg_parser *parser = user;
pthread_mutex_lock(&parser->mutex);
assert(!parser->read_request.pending);
parser->read_request.offset = offset;
pthread_mutex_unlock(&parser->mutex);
return true;
}
static GstBusSyncReply bus_handler_cb(GstBus *bus, GstMessage *msg, gpointer user)
{
struct wg_parser *parser = user;
gchar *dbg_info = NULL;
GError *err = NULL;
GST_DEBUG("parser %p, message type %s.", parser, GST_MESSAGE_TYPE_NAME(msg));
switch (msg->type)
{
case GST_MESSAGE_ERROR:
gst_message_parse_error(msg, &err, &dbg_info);
fprintf(stderr, "winegstreamer error: %s: %s\n", GST_OBJECT_NAME(msg->src), err->message);
fprintf(stderr, "winegstreamer error: %s: %s\n", GST_OBJECT_NAME(msg->src), dbg_info);
g_error_free(err);
g_free(dbg_info);
pthread_mutex_lock(&parser->mutex);
parser->error = true;
pthread_mutex_unlock(&parser->mutex);
pthread_cond_signal(&parser->init_cond);
break;
case GST_MESSAGE_WARNING:
gst_message_parse_warning(msg, &err, &dbg_info);
fprintf(stderr, "winegstreamer warning: %s: %s\n", GST_OBJECT_NAME(msg->src), err->message);
fprintf(stderr, "winegstreamer warning: %s: %s\n", GST_OBJECT_NAME(msg->src), dbg_info);
g_error_free(err);
g_free(dbg_info);
break;
case GST_MESSAGE_DURATION_CHANGED:
pthread_mutex_lock(&parser->mutex);
parser->has_duration = true;
pthread_mutex_unlock(&parser->mutex);
pthread_cond_signal(&parser->init_cond);
break;
default:
break;
}
gst_message_unref(msg);
return GST_BUS_DROP;
}
static HRESULT CDECL wg_parser_connect(struct wg_parser *parser, uint64_t file_size)
{
unsigned int i;
int ret;
parser->sink_connected = true;
if (!parser->bus)
{
parser->bus = gst_bus_new();
gst_bus_set_sync_handler(parser->bus, bus_handler_cb, parser, NULL);
}
parser->container = gst_bin_new(NULL);
gst_element_set_bus(parser->container, parser->bus);
if (!(parser->appsrc = create_element("appsrc", "base")))
return E_FAIL;
gst_bin_add(GST_BIN(parser->container), parser->appsrc);
g_object_set(parser->appsrc, "stream-type", GST_APP_STREAM_TYPE_RANDOM_ACCESS, NULL);
g_object_set(parser->appsrc, "size", file_size, NULL);
g_signal_connect(parser->appsrc, "need-data", G_CALLBACK(src_need_data), parser);
g_signal_connect(parser->appsrc, "seek-data", G_CALLBACK(src_seek_data), parser);
parser->read_request.offset = 0;
parser->error = false;
if (!parser->init_gst(parser))
goto out;
gst_element_set_state(parser->container, GST_STATE_PAUSED);
ret = gst_element_get_state(parser->container, NULL, NULL, -1);
if (ret == GST_STATE_CHANGE_FAILURE)
{
GST_ERROR("Failed to play stream.\n");
goto out;
}
pthread_mutex_lock(&parser->mutex);
while (!parser->no_more_pads && !parser->error)
pthread_cond_wait(&parser->init_cond, &parser->mutex);
if (parser->error)
{
pthread_mutex_unlock(&parser->mutex);
goto out;
}
for (i = 0; i < parser->stream_count; ++i)
{
struct wg_parser_stream *stream = parser->streams[i];
gint64 duration;
while (!stream->has_caps && !parser->error)
pthread_cond_wait(&parser->init_cond, &parser->mutex);
/* GStreamer doesn't actually provide any guarantees about when duration
* is available, even for seekable streams. It's basically built for
* applications that don't care, e.g. movie players that can display
* a duration once it's available, and update it visually if a better
* estimate is found. This doesn't really match well with DirectShow or
* Media Foundation, which both expect duration to be available
* immediately on connecting, so we have to use some complex heuristics
* to try to actually get a usable duration.
*
* Some elements (avidemux, wavparse, qtdemux) record duration almost
* immediately, before fixing caps. Such elements don't send
* duration-changed messages. Therefore always try querying duration
* after caps have been found.
*
* Some elements (mpegaudioparse) send duration-changed. In the case of
* a mp3 stream without seek tables it will not be sent immediately, but
* only after enough frames have been parsed to form an estimate. They
* may send it multiple times with increasingly accurate estimates, but
* unfortunately we have no way of knowing whether another estimate will
* be sent, so we always take the first one. We assume that if the
* duration is not immediately available then the element will always
* send duration-changed.
*/
for (;;)
{
if (parser->error)
{
pthread_mutex_unlock(&parser->mutex);
goto out;
}
if (gst_pad_query_duration(stream->their_src, GST_FORMAT_TIME, &duration))
{
stream->duration = duration / 100;
break;
}
if (stream->eos)
{
stream->duration = 0;
GST_WARNING("Failed to query duration.\n");
break;
}
/* Elements based on GstBaseParse send duration-changed before
* actually updating the duration in GStreamer versions prior
* to 1.17.1. See <gstreamer.git:d28e0b4147fe7073b2>. So after
* receiving duration-changed we have to continue polling until
* the query succeeds. */
if (parser->has_duration)
{
pthread_mutex_unlock(&parser->mutex);
g_usleep(10000);
pthread_mutex_lock(&parser->mutex);
}
else
{
pthread_cond_wait(&parser->init_cond, &parser->mutex);
}
}
}
pthread_mutex_unlock(&parser->mutex);
return S_OK;
out:
if (parser->container)
gst_element_set_state(parser->container, GST_STATE_NULL);
for (i = 0; i < parser->stream_count; ++i)
free_stream(parser->streams[i]);
parser->stream_count = 0;
free(parser->streams);
parser->streams = NULL;
if (parser->container)
{
gst_element_set_bus(parser->container, NULL);
gst_object_unref(parser->container);
parser->container = NULL;
}
pthread_mutex_lock(&parser->mutex);
parser->sink_connected = false;
pthread_mutex_unlock(&parser->mutex);
pthread_cond_signal(&parser->read_cond);
return E_FAIL;
}
static void CDECL wg_parser_disconnect(struct wg_parser *parser)
{
unsigned int i;
/* Unblock all of our streams. */
pthread_mutex_lock(&parser->mutex);
for (i = 0; i < parser->stream_count; ++i)
{
parser->streams[i]->flushing = true;
pthread_cond_signal(&parser->streams[i]->event_empty_cond);
}
pthread_mutex_unlock(&parser->mutex);
gst_element_set_state(parser->container, GST_STATE_NULL);
pthread_mutex_lock(&parser->mutex);
parser->sink_connected = false;
pthread_mutex_unlock(&parser->mutex);
pthread_cond_signal(&parser->read_cond);
for (i = 0; i < parser->stream_count; ++i)
free_stream(parser->streams[i]);
parser->stream_count = 0;
free(parser->streams);
parser->streams = NULL;
gst_element_set_bus(parser->container, NULL);
gst_object_unref(parser->container);
parser->container = NULL;
}
static BOOL decodebin_parser_init_gst(struct wg_parser *parser)
{
GstElement *element;
if (!(element = create_element("decodebin", "base")))
return FALSE;
gst_bin_add(GST_BIN(parser->container), element);
parser->decodebin = element;
g_signal_connect(element, "pad-added", G_CALLBACK(pad_added_cb), parser);
g_signal_connect(element, "pad-removed", G_CALLBACK(pad_removed_cb), parser);
g_signal_connect(element, "autoplug-select", G_CALLBACK(autoplug_select_cb), parser);
g_signal_connect(element, "no-more-pads", G_CALLBACK(no_more_pads_cb), parser);
pthread_mutex_lock(&parser->mutex);
parser->no_more_pads = false;
pthread_mutex_unlock(&parser->mutex);
if (!gst_element_link(parser->appsrc, parser->decodebin))
{
GST_ERROR("Failed to link appsrc.\n");
return FALSE;
}
return TRUE;
}
static BOOL avi_parser_init_gst(struct wg_parser *parser)
{
GstElement *element;
if (!(element = create_element("avidemux", "good")))
return FALSE;
gst_bin_add(GST_BIN(parser->container), element);
g_signal_connect(element, "pad-added", G_CALLBACK(pad_added_cb), parser);
g_signal_connect(element, "pad-removed", G_CALLBACK(pad_removed_cb), parser);
g_signal_connect(element, "no-more-pads", G_CALLBACK(no_more_pads_cb), parser);
pthread_mutex_lock(&parser->mutex);
parser->no_more_pads = false;
pthread_mutex_unlock(&parser->mutex);
if (!gst_element_link(parser->appsrc, element))
{
GST_ERROR("Failed to link appsrc.\n");
return FALSE;
}
return TRUE;
}
static BOOL mpeg_audio_parser_init_gst(struct wg_parser *parser)
{
struct wg_parser_stream *stream;
GstElement *element;
int ret;
if (!(element = create_element("mpegaudioparse", "good")))
return FALSE;
gst_bin_add(GST_BIN(parser->container), element);
if (!gst_element_link(parser->appsrc, element))
{
GST_ERROR("Failed to link appsrc.\n");
return FALSE;
}
if (!(stream = create_stream(parser)))
return FALSE;
gst_object_ref(stream->their_src = gst_element_get_static_pad(element, "src"));
if ((ret = gst_pad_link(stream->their_src, stream->my_sink)) < 0)
{
GST_ERROR("Failed to link source pads, error %d.\n", ret);
return FALSE;
}
gst_pad_set_active(stream->my_sink, 1);
parser->no_more_pads = true;
return TRUE;
}
static BOOL wave_parser_init_gst(struct wg_parser *parser)
{
struct wg_parser_stream *stream;
GstElement *element;
int ret;
if (!(element = create_element("wavparse", "good")))
return FALSE;
gst_bin_add(GST_BIN(parser->container), element);
if (!gst_element_link(parser->appsrc, element))
{
GST_ERROR("Failed to link appsrc.\n");
return FALSE;
}
if (!(stream = create_stream(parser)))
return FALSE;
stream->their_src = gst_element_get_static_pad(element, "src");
gst_object_ref(stream->their_src);
if ((ret = gst_pad_link(stream->their_src, stream->my_sink)) < 0)
{
GST_ERROR("Failed to link source pads, error %d.\n", ret);
return FALSE;
}
gst_pad_set_active(stream->my_sink, 1);
parser->no_more_pads = true;
return TRUE;
}
static struct wg_parser *wg_parser_create(void)
{
struct wg_parser *parser;
if (!(parser = calloc(1, sizeof(*parser))))
return NULL;
pthread_mutex_init(&parser->mutex, NULL);
pthread_cond_init(&parser->init_cond, NULL);
pthread_cond_init(&parser->read_cond, NULL);
parser->flushing = true;
GST_DEBUG("Created winegstreamer parser %p.\n", parser);
return parser;
}
static struct wg_parser * CDECL wg_decodebin_parser_create(void)
{
struct wg_parser *parser;
if ((parser = wg_parser_create()))
parser->init_gst = decodebin_parser_init_gst;
return parser;
}
static struct wg_parser * CDECL wg_avi_parser_create(void)
{
struct wg_parser *parser;
if ((parser = wg_parser_create()))
parser->init_gst = avi_parser_init_gst;
return parser;
}
static struct wg_parser * CDECL wg_mpeg_audio_parser_create(void)
{
struct wg_parser *parser;
if ((parser = wg_parser_create()))
parser->init_gst = mpeg_audio_parser_init_gst;
return parser;
}
static struct wg_parser * CDECL wg_wave_parser_create(void)
{
struct wg_parser *parser;
if ((parser = wg_parser_create()))
parser->init_gst = wave_parser_init_gst;
return parser;
}
static void CDECL wg_parser_destroy(struct wg_parser *parser)
{
if (parser->bus)
{
gst_bus_set_sync_handler(parser->bus, NULL, NULL, NULL);
gst_object_unref(parser->bus);
}
pthread_mutex_destroy(&parser->mutex);
pthread_cond_destroy(&parser->init_cond);
pthread_cond_destroy(&parser->read_cond);
free(parser);
}
static const struct unix_funcs funcs =
{
wg_decodebin_parser_create,
wg_avi_parser_create,
wg_mpeg_audio_parser_create,
wg_wave_parser_create,
wg_parser_destroy,
wg_parser_connect,
wg_parser_disconnect,
wg_parser_begin_flush,
wg_parser_end_flush,
wg_parser_get_next_read_offset,
wg_parser_push_data,
wg_parser_set_unlimited_buffering,
wg_parser_get_stream_count,
wg_parser_get_stream,
wg_parser_stream_get_preferred_format,
wg_parser_stream_enable,
wg_parser_stream_disable,
wg_parser_stream_get_event,
wg_parser_stream_copy_buffer,
wg_parser_stream_release_buffer,
wg_parser_stream_notify_qos,
wg_parser_stream_get_duration,
wg_parser_stream_seek,
};
NTSTATUS CDECL __wine_init_unix_lib(HMODULE module, DWORD reason, const void *ptr_in, void *ptr_out)
{
if (reason == DLL_PROCESS_ATTACH)
{
char arg0[] = "wine";
char arg1[] = "--gst-disable-registry-fork";
char *args[] = {arg0, arg1, NULL};
int argc = ARRAY_SIZE(args) - 1;
char **argv = args;
GError *err;
if (!gst_init_check(&argc, &argv, &err))
{
fprintf(stderr, "winegstreamer: failed to initialize GStreamer: %s\n", debugstr_a(err->message));
g_error_free(err);
return STATUS_UNSUCCESSFUL;
}
GST_DEBUG_CATEGORY_INIT(wine, "WINE", GST_DEBUG_FG_RED, "Wine GStreamer support");
GST_INFO("GStreamer library version %s; wine built with %d.%d.%d.\n",
gst_version_string(), GST_VERSION_MAJOR, GST_VERSION_MINOR, GST_VERSION_MICRO);
*(const struct unix_funcs **)ptr_out = &funcs;
}
return STATUS_SUCCESS;
}
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