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improved info extraction.. plays as fast as possible in MediaPlayer, not well in nplay

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@6524 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
shatty
2004-02-08 11:13:38 +00:00
parent b8827c3055
commit d897b15019
3 changed files with 55 additions and 26 deletions
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src/add-ons/media/plugins/ogg/OggTobiasFormats.h
+3 -3
View File
@@ -10,7 +10,7 @@
static media_format_description
tobias_description()
tobias_video_description()
{
media_format_description description;
description.family = B_AVI_FORMAT_FAMILY;
@@ -21,15 +21,15 @@ tobias_description()
static void
init_tobias_media_raw_video_format(media_raw_video_format * output)
{
}
static media_format
tobias_encoded_media_format()
tobias_video_encoded_media_format()
{
media_format format;
format.type = B_MEDIA_ENCODED_VIDEO;
format.u.encoded_audio.frame_size = sizeof(ogg_packet);
init_tobias_media_raw_video_format(&format.u.encoded_video.output);
return format;
}
src/add-ons/media/plugins/ogg/OggTobiasStream.cpp
+50 -23
View File
@@ -104,28 +104,42 @@ OggTobiasStream::GetStreamInfo(int64 *frameCount, bigtime_t *duration,
void * data = &(packet.packet[1]);
tobias_stream_header * header = (tobias_stream_header *)data;
// get the format for the description
media_format_description description = tobias_description();
description.u.avi.codec = header->subtype[3] << 24 | header->subtype[2] << 16
| header->subtype[1] << 8 | header->subtype[0];
BMediaFormats formats;
result = formats.InitCheck();
if (result == B_OK) {
result = formats.GetFormatFor(description, format);
}
if (result != B_OK) {
*format = tobias_encoded_media_format();
// ignore error, allow user to use ReadChunk interface
}
if (strcmp(header->streamtype, "video") == 0) {
// get the format for the description
media_format_description description = tobias_video_description();
description.u.avi.codec = header->subtype[3] << 24 | header->subtype[2] << 16
| header->subtype[1] << 8 | header->subtype[0];
BMediaFormats formats;
result = formats.InitCheck();
if (result == B_OK) {
result = formats.GetFormatFor(description, format);
}
if (result != B_OK) {
*format = tobias_video_encoded_media_format();
// ignore error, allow user to use ReadChunk interface
}
// fill out format from header packet
format->user_data_type = B_CODEC_TYPE_INFO;
strncpy((char*)format->user_data, header->subtype, 4);
format->u.encoded_video.frame_size
= header->video.width * header->video.height;
format->u.encoded_video.output.display.line_width = header->video.width;
format->u.encoded_video.output.display.line_count = header->video.height;
// TODO: wring more info out of the headers
// fill out format from header packet
format->user_data_type = B_CODEC_TYPE_INFO;
strncpy((char*)format->user_data, header->subtype, 4);
format->u.encoded_video.frame_size
= header->video.width * header->video.height;
format->u.encoded_video.output.field_rate = 10000000.0 / header->time_unit;
format->u.encoded_video.output.interlace = 1;
format->u.encoded_video.output.first_active = 0;
format->u.encoded_video.output.last_active = header->video.height - 1;
format->u.encoded_video.output.orientation = B_VIDEO_TOP_LEFT_RIGHT;
format->u.encoded_video.output.pixel_width_aspect = 1;
format->u.encoded_video.output.pixel_height_aspect = 1;
format->u.encoded_video.output.display.line_width = header->video.width;
format->u.encoded_video.output.display.line_count = header->video.height;
format->u.encoded_video.output.display.bytes_per_row = 0;
format->u.encoded_video.output.display.pixel_offset = 0;
format->u.encoded_video.output.display.line_offset = 0;
format->u.encoded_video.output.display.flags = 0;
// TODO: wring more info out of the headers
}
// get comment packet
if (GetHeaderPackets().size() < 2) {
@@ -137,8 +151,9 @@ OggTobiasStream::GetStreamInfo(int64 *frameCount, bigtime_t *duration,
}
format->SetMetaData((void*)&GetHeaderPackets(),sizeof(GetHeaderPackets()));
*duration = 80000000;
*frameCount = 60000;
*frameCount = 2000000;
*duration = *frameCount * format->u.encoded_video.output.field_rate;
fMediaFormat = *format;
return B_OK;
}
@@ -153,5 +168,17 @@ OggTobiasStream::GetNextChunk(void **chunkBuffer, int32 *chunkSize,
}
*chunkBuffer = fChunkPacket.packet;
*chunkSize = fChunkPacket.bytes;
// bool keyframe = fChunkPacket.packet[0] & (1 << 3); // ??
if (mediaHeader->type == B_MEDIA_ENCODED_VIDEO) {
mediaHeader->type = fMediaFormat.type;
mediaHeader->start_time = fCurrentTime;
// mediaHeader->u.encoded_video.field_flags = (keyframe ? B_MEDIA_KEY_FRAME : 0);
mediaHeader->u.encoded_video.first_active_line
= fMediaFormat.u.encoded_video.output.first_active;
mediaHeader->u.encoded_video.line_count
= fMediaFormat.u.encoded_video.output.display.line_count;
fCurrentFrame++;
fCurrentTime = 1000000LL * fCurrentFrame / fMediaFormat.u.encoded_video.output.field_rate;
}
return B_OK;
}
src/add-ons/media/plugins/ogg/OggTobiasStream.h
+2
View File
@@ -17,6 +17,8 @@ public:
virtual status_t GetNextChunk(void **chunkBuffer, int32 *chunkSize,
media_header *mediaHeader);
private:
media_format fMediaFormat;
};
} } // namespace BPrivate::media