STDMETHODIMP CDecAvcodec::Flush()
{
if (m_pAVCtx && avcodec_is_open(m_pAVCtx)) {
avcodec_flush_buffers(m_pAVCtx);
}
if (m_pParser) {
av_parser_close(m_pParser);
m_pParser = av_parser_init(m_nCodecId);
}
m_CurrentThread = 0;
m_rtStartCache = AV_NOPTS_VALUE;
m_bWaitingForKeyFrame = TRUE;
m_nSoftTelecine = 0;
m_nBFramePos = 0;
m_tcBFrameDelay[0].rtStart = m_tcBFrameDelay[0].rtStop = AV_NOPTS_VALUE;
m_tcBFrameDelay[1].rtStart = m_tcBFrameDelay[1].rtStop = AV_NOPTS_VALUE;
if (!(m_pCallback->GetDecodeFlags() & LAV_VIDEO_DEC_FLAG_DVD) && (m_nCodecId == AV_CODEC_ID_H264 || m_nCodecId == AV_CODEC_ID_MPEG2VIDEO)) {
CDecAvcodec::InitDecoder(m_nCodecId, &m_pCallback->GetInputMediaType());
}
return __super::Flush();
}
bool FF_Format_Stream_Decoder::InitializeDecoder(int index,int threads)
{
if (index == -1 || pFormatContext == NULL)
return false;
if (index > pFormatContext->nb_streams)
return false;
if (pCodec != NULL)
if (avcodec_is_open(pCodecContext) >= 0)
return false;
pStream = pFormatContext->streams[index];
if (pStream == NULL)
return false;
pCodecContext = pStream->codec;
if (pCodecContext == NULL)
return false;
pCodec = avcodec_find_decoder(pCodecContext->codec_id);
if (pCodec == NULL)
return false;
if (threads > 0)
{
pCodecContext->thread_count = threads;
pCodecContext->active_thread_type = FF_THREAD_FRAME;
}
int result = avcodec_open2(pCodecContext,pCodec,NULL);
return result < 0 ? false:true;
}
int attribute_align_arg avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
{
AVCodecInternal *avci = avctx->internal;
int ret;
av_frame_unref(frame);
if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec))
return AVERROR(EINVAL);
ret = bsfs_init(avctx);
if (ret < 0)
return ret;
if (avci->buffer_frame->buf[0]) {
av_frame_move_ref(frame, avci->buffer_frame);
} else {
ret = decode_receive_frame_internal(avctx, frame);
if (ret < 0)
return ret;
}
if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
ret = apply_cropping(avctx, frame);
if (ret < 0) {
av_frame_unref(frame);
return ret;
}
}
avctx->frame_number++;
return 0;
}
int AudioEncode::encode(AVPacket * pkt, const uint8_t ** data, int nb_samples)
{
if (mBitRate == 0)
mBitRate = defaultBitRate();
if (mChannelLayout == 0) {
mChannelLayout = defaultChannelLayout();
} else {
mChannelLayout = checkChannelLayout(mChannelLayout);
}
if (mSampleFmt == AV_SAMPLE_FMT_NONE) {
mSampleFmt = defaultSampleFmt();
} else {
mSampleFmt = checkSampleFmt(mSampleFmt);
}
if (mSampleRate == 0)
mSampleRate = defaultSampleRate();
mCodecCtx->bit_rate = mBitRate;
mCodecCtx->channel_layout = mChannelLayout;
mCodecCtx->sample_fmt = mSampleFmt;
mCodecCtx->sample_rate = mSampleRate;
mCodecCtx->flags |= mFlags;
if (!avcodec_is_open(mCodecCtx)) {
avcodec_open2(mCodecCtx, mCodec, NULL);
}
mState = ENCODE_STATE_RUN;
return doEncode(pkt, data, nb_samples);
}
int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src)
{
if (avcodec_is_open(dest)) { // check that the dest context is uninitialized
av_log(dest, AV_LOG_ERROR,
"Tried to copy AVCodecContext %p into already-initialized %p\n",
src, dest);
return AVERROR(EINVAL);
}
av_opt_free(dest);
av_free(dest->priv_data);
memcpy(dest, src, sizeof(*dest));
/* set values specific to opened codecs back to their default state */
dest->priv_data = NULL;
dest->codec = NULL;
dest->slice_offset = NULL;
dest->hwaccel = NULL;
dest->internal = NULL;
/* reallocate values that should be allocated separately */
dest->rc_eq = NULL;
dest->extradata = NULL;
dest->intra_matrix = NULL;
dest->inter_matrix = NULL;
dest->rc_override = NULL;
if (src->rc_eq) {
dest->rc_eq = av_strdup(src->rc_eq);
if (!dest->rc_eq)
return AVERROR(ENOMEM);
}
#define alloc_and_copy_or_fail(obj, size, pad) \
if (src->obj && size > 0) { \
dest->obj = av_malloc(size + pad); \
if (!dest->obj) \
goto fail; \
memcpy(dest->obj, src->obj, size); \
if (pad) \
memset(((uint8_t *) dest->obj) + size, 0, pad); \
}
alloc_and_copy_or_fail(extradata, src->extradata_size,
FF_INPUT_BUFFER_PADDING_SIZE);
alloc_and_copy_or_fail(intra_matrix, 64 * sizeof(int16_t), 0);
alloc_and_copy_or_fail(inter_matrix, 64 * sizeof(int16_t), 0);
alloc_and_copy_or_fail(rc_override, src->rc_override_count * sizeof(*src->rc_override), 0);
alloc_and_copy_or_fail(subtitle_header, src->subtitle_header_size, 1);
#undef alloc_and_copy_or_fail
return 0;
fail:
av_freep(&dest->rc_override);
av_freep(&dest->intra_matrix);
av_freep(&dest->inter_matrix);
av_freep(&dest->extradata);
av_freep(&dest->rc_eq);
return AVERROR(ENOMEM);
}
void AudioEncode::close()
{
mState = ENCODE_STATE_CLOSE;
if (mCodecCtx && avcodec_is_open(mCodecCtx)) {
avcodec_close(mCodecCtx);
}
av_freep(&mData[0]);
av_free(mCodecCtx);
av_audio_fifo_free(mFifo);
}
FF_Format_Stream_Decoder::~FF_Format_Stream_Decoder()
{
if (pCodec)
{
if (avcodec_is_open(pCodecContext) >= 0)
avcodec_close(pCodecContext);
}
if (pMyWrapper)
pMyWrapper->Unref();
}
int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext *pb)
{
enum AVCodecID codec_id;
unsigned v;
int len, tag;
int ret;
int object_type_id = avio_r8(pb);
avio_r8(pb); /* stream type */
avio_rb24(pb); /* buffer size db */
if(avcodec_is_open(st->codec)) {
av_log(fc, AV_LOG_DEBUG, "codec open in read_dec_config_descr\n");
return -1;
}
v = avio_rb32(pb);
if (v < INT32_MAX)
st->codec->rc_max_rate = v;
st->codec->bit_rate = avio_rb32(pb); /* avg bitrate */
codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id);
if (codec_id)
st->codec->codec_id= codec_id;
av_log(fc, AV_LOG_TRACE, "esds object type id 0x%02x\n", object_type_id);
len = ff_mp4_read_descr(fc, pb, &tag);
if (tag == MP4DecSpecificDescrTag) {
av_log(fc, AV_LOG_TRACE, "Specific MPEG4 header len=%d\n", len);
if (!len || (uint64_t)len > (1<<30))
return -1;
av_free(st->codec->extradata);
if ((ret = ff_get_extradata(st->codec, pb, len)) < 0)
return ret;
if (st->codec->codec_id == AV_CODEC_ID_AAC) {
MPEG4AudioConfig cfg = {0};
avpriv_mpeg4audio_get_config(&cfg, st->codec->extradata,
st->codec->extradata_size * 8, 1);
st->codec->channels = cfg.channels;
if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
st->codec->sample_rate = avpriv_mpa_freq_tab[cfg.sampling_index];
else if (cfg.ext_sample_rate)
st->codec->sample_rate = cfg.ext_sample_rate;
else
st->codec->sample_rate = cfg.sample_rate;
av_log(fc, AV_LOG_TRACE, "mp4a config channels %d obj %d ext obj %d "
"sample rate %d ext sample rate %d\n", st->codec->channels,
cfg.object_type, cfg.ext_object_type,
cfg.sample_rate, cfg.ext_sample_rate);
if (!(st->codec->codec_id = ff_codec_get_id(mp4_audio_types,
cfg.object_type)))
st->codec->codec_id = AV_CODEC_ID_AAC;
}
}
return 0;
}
STDMETHODIMP CDecD3D11::BreakConnect()
{
if (m_bReadBackFallback)
return S_FALSE;
// release any resources held by the core
m_pCallback->ReleaseAllDXVAResources();
// flush all buffers out of the decoder to ensure the allocator can be properly de-allocated
if (m_pAVCtx && avcodec_is_open(m_pAVCtx))
avcodec_flush_buffers(m_pAVCtx);
return S_OK;
}
int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext *pb)
{
int len, tag;
int object_type_id = avio_r8(pb);
avio_r8(pb); /* stream type */
avio_rb24(pb); /* buffer size db */
avio_rb32(pb); /* max bitrate */
avio_rb32(pb); /* avg bitrate */
if(avcodec_is_open(st->codec)) {
av_log(fc, AV_LOG_DEBUG, "codec open in read_dec_config_descr\n");
return -1;
}
st->codec->codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id);
av_dlog(fc, "esds object type id 0x%02x\n", object_type_id);
len = ff_mp4_read_descr(fc, pb, &tag);
if (tag == MP4DecSpecificDescrTag) {
av_dlog(fc, "Specific MPEG4 header len=%d\n", len);
if (!len || (uint64_t)len > (1<<30))
return -1;
av_free(st->codec->extradata);
st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
if (!st->codec->extradata)
return AVERROR(ENOMEM);
avio_read(pb, st->codec->extradata, len);
st->codec->extradata_size = len;
if (st->codec->codec_id == AV_CODEC_ID_AAC) {
MPEG4AudioConfig cfg;
avpriv_mpeg4audio_get_config(&cfg, st->codec->extradata,
st->codec->extradata_size * 8, 1);
st->codec->channels = cfg.channels;
if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
st->codec->sample_rate = avpriv_mpa_freq_tab[cfg.sampling_index];
else if (cfg.ext_sample_rate)
st->codec->sample_rate = cfg.ext_sample_rate;
else
st->codec->sample_rate = cfg.sample_rate;
av_dlog(fc, "mp4a config channels %d obj %d ext obj %d "
"sample rate %d ext sample rate %d\n", st->codec->channels,
cfg.object_type, cfg.ext_object_type,
cfg.sample_rate, cfg.ext_sample_rate);
if (!(st->codec->codec_id = ff_codec_get_id(mp4_audio_types,
cfg.object_type)))
st->codec->codec_id = AV_CODEC_ID_AAC;
}
}
return 0;
}
ffdec_error ffdec_close(ffdec_context *ffd_context)
{
AVCodecContext *codec_context = ffd_context->codec_context;
if (codec_context)
{
if (avcodec_is_open(codec_context))
{
avcodec_close(codec_context);
}
av_free(codec_context);
codec_context = ffd_context->codec_context = NULL;
}
return FFDEC_OK;
}
int attribute_align_arg avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt)
{
AVCodecInternal *avci = avctx->internal;
int ret = 0;
if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec))
return AVERROR(EINVAL);
if (avctx->internal->draining)
return AVERROR_EOF;
ret = bsfs_init(avctx);
if (ret < 0)
return ret;
av_packet_unref(avci->buffer_pkt);
if (avpkt && (avpkt->data || avpkt->side_data_elems)) {
ret = av_packet_ref(avci->buffer_pkt, avpkt);
if (ret < 0)
return ret;
}
ret = av_bsf_send_packet(avci->filter.bsfs[0], avci->buffer_pkt);
if (ret < 0) {
av_packet_unref(avci->buffer_pkt);
return ret;
}
if (!avci->buffer_frame->buf[0]) {
ret = decode_receive_frame_internal(avctx, avci->buffer_frame);
if (ret < 0 && ret != AVERROR(EAGAIN) && ret != AVERROR_EOF)
return ret;
}
return 0;
}
// Encode frame and pass to block
VALUE audio_stream_decode(VALUE self) {
AudioStreamInternal * internal;
Data_Get_Struct(self, AudioStreamInternal, internal);
// Prepare codec
if (!avcodec_is_open(internal->base.stream->codec)) {
AVCodec * codec = internal->base.stream->codec->codec;
if (!codec) {
codec = avcodec_find_decoder(internal->base.stream->codec->codec_id);
}
avcodec_open2(internal->base.stream->codec, codec, NULL);
}
// Find and decode next audio frame
AVFrame * frame = avcodec_alloc_frame();
for (;;) {
// Find next packet for this stream
AVPacket packet;
int found = reader_find_next_stream_packet(internal->base.reader, &packet, internal->base.stream->index);
if (!found) {
// No more packets
av_free(frame);
return Qnil;
}
// Decode audio frame
int decoded = 0;
int err = avcodec_decode_audio4(internal->base.stream->codec, frame, &decoded, &packet);
if (err < 0) rb_raise_av_error(rb_eLoadError, err);
if (decoded) {
return audio_frame_new(frame, internal->base.stream->codec);
}
}
}
bool ffStream::isOpen()
{
return avcodec_is_open(m_pAVStream->codec);
}
int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src)
{
const AVCodec *orig_codec = dest->codec;
uint8_t *orig_priv_data = dest->priv_data;
if (avcodec_is_open(dest)) { // check that the dest context is uninitialized
av_log(dest, AV_LOG_ERROR,
"Tried to copy AVCodecContext %p into already-initialized %p\n",
src, dest);
return AVERROR(EINVAL);
}
av_opt_free(dest);
av_freep(&dest->rc_override);
av_freep(&dest->intra_matrix);
av_freep(&dest->inter_matrix);
av_freep(&dest->extradata);
av_freep(&dest->subtitle_header);
memcpy(dest, src, sizeof(*dest));
av_opt_copy(dest, src);
dest->priv_data = orig_priv_data;
dest->codec = orig_codec;
if (orig_priv_data && src->codec && src->codec->priv_class &&
dest->codec && dest->codec->priv_class)
av_opt_copy(orig_priv_data, src->priv_data);
/* set values specific to opened codecs back to their default state */
dest->slice_offset = NULL;
dest->hwaccel = NULL;
dest->internal = NULL;
#if FF_API_CODED_FRAME
FF_DISABLE_DEPRECATION_WARNINGS
dest->coded_frame = NULL;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
/* reallocate values that should be allocated separately */
dest->extradata = NULL;
dest->intra_matrix = NULL;
dest->inter_matrix = NULL;
dest->rc_override = NULL;
dest->subtitle_header = NULL;
dest->hw_frames_ctx = NULL;
#define alloc_and_copy_or_fail(obj, size, pad) \
if (src->obj && size > 0) { \
dest->obj = av_malloc(size + pad); \
if (!dest->obj) \
goto fail; \
memcpy(dest->obj, src->obj, size); \
if (pad) \
memset(((uint8_t *) dest->obj) + size, 0, pad); \
}
alloc_and_copy_or_fail(extradata, src->extradata_size,
AV_INPUT_BUFFER_PADDING_SIZE);
dest->extradata_size = src->extradata_size;
alloc_and_copy_or_fail(intra_matrix, 64 * sizeof(int16_t), 0);
alloc_and_copy_or_fail(inter_matrix, 64 * sizeof(int16_t), 0);
alloc_and_copy_or_fail(rc_override, src->rc_override_count * sizeof(*src->rc_override), 0);
alloc_and_copy_or_fail(subtitle_header, src->subtitle_header_size, 1);
av_assert0(dest->subtitle_header_size == src->subtitle_header_size);
#undef alloc_and_copy_or_fail
if (src->hw_frames_ctx) {
dest->hw_frames_ctx = av_buffer_ref(src->hw_frames_ctx);
if (!dest->hw_frames_ctx)
goto fail;
}
return 0;
fail:
av_freep(&dest->subtitle_header);
av_freep(&dest->rc_override);
av_freep(&dest->intra_matrix);
av_freep(&dest->inter_matrix);
av_freep(&dest->extradata);
av_buffer_unref(&dest->hw_frames_ctx);
dest->subtitle_header_size = 0;
dest->extradata_size = 0;
av_opt_free(dest);
return AVERROR(ENOMEM);
}
void ffStream::Close()
{
if (avcodec_is_open(m_pAVStream->codec))
avcodec_close(m_pAVStream->codec);
}
// Initialization and runtime control
static int control(struct af_instance *af, int cmd, void *arg)
{
af_ac3enc_t *s = af->priv;
static const int default_bit_rate[AC3_MAX_CHANNELS+1] = \
{0, 96000, 192000, 256000, 384000, 448000, 448000};
switch (cmd){
case AF_CONTROL_REINIT: {
struct mp_audio *in = arg;
struct mp_audio orig_in = *in;
if (!af_fmt_is_pcm(in->format) || in->nch < s->cfg_min_channel_num)
return AF_DETACH;
// At least currently, the AC3 encoder doesn't export sample rates.
in->rate = 48000;
select_encode_format(s->lavc_actx, in);
af->data->rate = in->rate;
mp_audio_set_format(af->data, AF_FORMAT_S_AC3);
mp_audio_set_num_channels(af->data, 2);
if (!mp_audio_config_equals(in, &orig_in))
return AF_FALSE;
if (s->cfg_add_iec61937_header) {
s->out_samples = AC3_FRAME_SIZE;
} else {
s->out_samples = AC3_MAX_CODED_FRAME_SIZE / af->data->sstride;
}
mp_audio_copy_config(s->input, in);
talloc_free(s->pending);
s->pending = NULL;
MP_DBG(af, "reinit: %d, %d, %d.\n", in->nch, in->rate, s->in_samples);
int bit_rate = s->bit_rate ? s->bit_rate : default_bit_rate[in->nch];
if (s->lavc_actx->channels != in->nch ||
s->lavc_actx->sample_rate != in->rate ||
s->lavc_actx->bit_rate != bit_rate)
{
avcodec_close(s->lavc_actx);
// Put sample parameters
s->lavc_actx->sample_fmt = af_to_avformat(in->format);
s->lavc_actx->channels = in->nch;
s->lavc_actx->channel_layout = mp_chmap_to_lavc(&in->channels);
s->lavc_actx->sample_rate = in->rate;
s->lavc_actx->bit_rate = bit_rate;
if (avcodec_open2(s->lavc_actx, s->lavc_acodec, NULL) < 0) {
MP_ERR(af, "Couldn't open codec %s, br=%d.\n", "ac3", bit_rate);
return AF_ERROR;
}
if (s->lavc_actx->frame_size < 1) {
MP_ERR(af, "encoder didn't specify input frame size\n");
return AF_ERROR;
}
}
s->in_samples = s->lavc_actx->frame_size;
mp_audio_realloc(s->input, s->in_samples);
s->input->samples = 0;
s->encoder_buffered = 0;
return AF_OK;
}
case AF_CONTROL_RESET:
if (avcodec_is_open(s->lavc_actx))
avcodec_flush_buffers(s->lavc_actx);
talloc_free(s->pending);
s->pending = NULL;
s->input->samples = 0;
s->encoder_buffered = 0;
return AF_OK;
}
return AF_UNKNOWN;
}
ffdec_error ffdec_create_view(ffdec_context *ffd_context, QString group, QString id, screen_window_t *window)
{
ffdec_reserved *ffd_reserved = (ffdec_reserved*) ffd_context->reserved;
if (!ffd_reserved) return FFDEC_NOT_INITIALIZED;
if (ffd_reserved->view)
{
*window = ffd_reserved->view->screen_window;
return FFDEC_OK;
}
AVCodecContext *codec_context = ffd_context->codec_context;
if (!codec_context) return FFDEC_NO_CODEC_SPECIFIED;
if (!avcodec_is_open(codec_context)) return FFDEC_CODEC_NOT_OPEN;
ffdec_view *view = (ffdec_view*) malloc(sizeof(ffdec_view));
memset(view, 0, sizeof(ffdec_view));
QByteArray groupArr = group.toAscii();
QByteArray idArr = id.toAscii();
screen_context_t screen_context;
screen_create_context(&screen_context, SCREEN_APPLICATION_CONTEXT);
screen_window_t screen_window;
screen_create_window_type(&screen_window, screen_context, SCREEN_CHILD_WINDOW);
screen_join_window_group(screen_window, groupArr.constData());
screen_set_window_property_cv(screen_window, SCREEN_PROPERTY_ID_STRING, idArr.length(), idArr.constData());
int usage = SCREEN_USAGE_NATIVE;
screen_set_window_property_iv(screen_window, SCREEN_PROPERTY_USAGE, &usage);
int video_size[] = { codec_context->width, codec_context->height };
screen_set_window_property_iv(screen_window, SCREEN_PROPERTY_BUFFER_SIZE, video_size);
screen_set_window_property_iv(screen_window, SCREEN_PROPERTY_SOURCE_SIZE, video_size);
int z = -1;
screen_set_window_property_iv(screen_window, SCREEN_PROPERTY_ZORDER, &z);
int pos[] = { 0, 0 };
screen_set_window_property_iv(screen_window, SCREEN_PROPERTY_POSITION, pos);
screen_create_window_buffers(screen_window, 1);
screen_pixmap_t screen_pix;
screen_create_pixmap(&screen_pix, screen_context);
usage = SCREEN_USAGE_WRITE | SCREEN_USAGE_NATIVE;
screen_set_pixmap_property_iv(screen_pix, SCREEN_PROPERTY_USAGE, &usage);
int format = SCREEN_FORMAT_YUV420;
screen_set_pixmap_property_iv(screen_pix, SCREEN_PROPERTY_FORMAT, &format);
screen_set_pixmap_property_iv(screen_pix, SCREEN_PROPERTY_BUFFER_SIZE, video_size);
screen_create_pixmap_buffer(screen_pix);
screen_buffer_t screen_pixel_buffer;
screen_get_pixmap_property_pv(screen_pix, SCREEN_PROPERTY_RENDER_BUFFERS, (void**) &screen_pixel_buffer);
int stride;
screen_get_buffer_property_iv(screen_pixel_buffer, SCREEN_PROPERTY_STRIDE, &stride);
view->screen_context = screen_context;
*window = view->screen_window = screen_window;
view->screen_pixel_buffer = screen_pixel_buffer;
view->stride = stride;
ffd_reserved->view = view;
return FFDEC_OK;
}
