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#include "packet_ext.h"
void nn_packet_write_av_codec_parameters(struct nn_packet *packet, AVCodecParameters *codecpar)
{
NNWT_PACKET_WRITE_TYPE(packet, enum AVMediaType, codecpar->codec_type);
NNWT_PACKET_WRITE_TYPE(packet, enum AVCodecID, codecpar->codec_id);
NNWT_PACKET_WRITE_TYPE(packet, u32, codecpar->codec_tag);
NNWT_PACKET_WRITE_TYPE(packet, s32, codecpar->extradata_size);
NNWT_PACKET_WRITE_DATA(packet, codecpar->extradata, codecpar->extradata_size);
NNWT_PACKET_WRITE_TYPE(packet, s32, codecpar->format);
NNWT_PACKET_WRITE_TYPE(packet, s64, codecpar->bit_rate);
NNWT_PACKET_WRITE_TYPE(packet, s32, codecpar->bits_per_coded_sample);
NNWT_PACKET_WRITE_TYPE(packet, s32, codecpar->bits_per_raw_sample);
NNWT_PACKET_WRITE_TYPE(packet, s32, codecpar->profile);
NNWT_PACKET_WRITE_TYPE(packet, s32, codecpar->level);
NNWT_PACKET_WRITE_TYPE(packet, s32, codecpar->width);
NNWT_PACKET_WRITE_TYPE(packet, s32, codecpar->height);
NNWT_PACKET_WRITE_TYPE(packet, AVRational, codecpar->sample_aspect_ratio);
#if !defined CAMU_OLD_FFMPEG && LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(60, 11, 100)
NNWT_PACKET_WRITE_TYPE(packet, AVRational, codecpar->framerate);
#endif
NNWT_PACKET_WRITE_TYPE(packet, enum AVFieldOrder, codecpar->field_order);
NNWT_PACKET_WRITE_TYPE(packet, enum AVColorRange, codecpar->color_range);
NNWT_PACKET_WRITE_TYPE(packet, enum AVColorPrimaries, codecpar->color_primaries);
NNWT_PACKET_WRITE_TYPE(packet, enum AVColorTransferCharacteristic, codecpar->color_trc);
NNWT_PACKET_WRITE_TYPE(packet, enum AVColorSpace, codecpar->color_space);
NNWT_PACKET_WRITE_TYPE(packet, enum AVChromaLocation, codecpar->chroma_location);
NNWT_PACKET_WRITE_TYPE(packet, s32, codecpar->video_delay);
#ifndef CAMU_OLD_FFMPEG
// Incomplete.
NNWT_PACKET_WRITE_TYPE(packet, enum AVChannelOrder, codecpar->ch_layout.order);
if (codecpar->ch_layout.order == AV_CHANNEL_ORDER_NATIVE) {
NNWT_PACKET_WRITE_TYPE(packet, u64, codecpar->ch_layout.u.mask);
} else {
NNWT_PACKET_WRITE_TYPE(packet, s32, codecpar->ch_layout.nb_channels);
}
#else
NNWT_PACKET_WRITE_TYPE(packet, u64, codecpar->channel_layout);
NNWT_PACKET_WRITE_TYPE(packet, s32, codecpar->channels);
#endif
NNWT_PACKET_WRITE_TYPE(packet, s32, codecpar->sample_rate);
NNWT_PACKET_WRITE_TYPE(packet, s32, codecpar->block_align);
NNWT_PACKET_WRITE_TYPE(packet, s32, codecpar->frame_size);
NNWT_PACKET_WRITE_TYPE(packet, s32, codecpar->initial_padding);
NNWT_PACKET_WRITE_TYPE(packet, s32, codecpar->trailing_padding);
NNWT_PACKET_WRITE_TYPE(packet, s32, codecpar->seek_preroll);
}
void nn_packet_write_av_codec_id(struct nn_packet *packet, enum AVCodecID codec_id)
{
NNWT_PACKET_WRITE_TYPE(packet, enum AVCodecID, codec_id);
}
void nn_packet_write_av_dictionary(struct nn_packet *packet, AVDictionary *dict)
{
s32 count = av_dict_count(dict);
NNWT_PACKET_WRITE_TYPE(packet, s32, count);
const AVDictionaryEntry *entry = NULL;
while ((entry = av_dict_get(dict, "", entry, AV_DICT_IGNORE_SUFFIX))) {
size_t len = al_strlen(entry->key);
al_assert(len <= UINT32_MAX);
NNWT_PACKET_WRITE_TYPE(packet, u32, len);
NNWT_PACKET_WRITE_DATA(packet, entry->key, len);
len = al_strlen(entry->value);
al_assert(len <= UINT32_MAX);
NNWT_PACKET_WRITE_TYPE(packet, u32, len);
NNWT_PACKET_WRITE_DATA(packet, entry->value, len);
}
}
void nn_packet_write_av_stream(struct nn_packet *packet, AVStream *stream)
{
NNWT_PACKET_WRITE_TYPE(packet, s32, stream->index);
nn_packet_write_av_codec_parameters(packet, stream->codecpar);
NNWT_PACKET_WRITE_TYPE(packet, AVRational, stream->time_base);
NNWT_PACKET_WRITE_TYPE(packet, s64, stream->duration);
NNWT_PACKET_WRITE_TYPE(packet, s64, stream->start_time);
NNWT_PACKET_WRITE_TYPE(packet, s64, stream->nb_frames);
nn_packet_write_av_dictionary(packet, stream->metadata);
if (stream->avg_frame_rate.den == 0) {
// r_frame_rate.den = 0 handled on the client.
NNWT_PACKET_WRITE_TYPE(packet, AVRational, stream->r_frame_rate);
} else {
NNWT_PACKET_WRITE_TYPE(packet, AVRational, stream->avg_frame_rate);
}
}
void nn_packet_write_av_packet(struct nn_packet *packet, AVPacket *pkt)
{
NNWT_PACKET_WRITE_TYPE(packet, s64, pkt->pts);
NNWT_PACKET_WRITE_TYPE(packet, s64, pkt->dts);
NNWT_PACKET_WRITE_TYPE(packet, s32, pkt->size);
NNWT_PACKET_WRITE_DATA(packet, pkt->data, pkt->size);
NNWT_PACKET_WRITE_TYPE(packet, s32, pkt->stream_index);
NNWT_PACKET_WRITE_TYPE(packet, s32, pkt->flags);
NNWT_PACKET_WRITE_TYPE(packet, s32, pkt->side_data_elems);
for (s32 i = 0; i < pkt->side_data_elems; i++) {
// Possibly upcast size_t.
s64 size = (s64)pkt->side_data[i].size;
NNWT_PACKET_WRITE_TYPE(packet, s64, size);
NNWT_PACKET_WRITE_DATA(packet, pkt->side_data[i].data, pkt->side_data[i].size);
NNWT_PACKET_WRITE_TYPE(packet, enum AVPacketSideDataType, pkt->side_data[i].type);
}
NNWT_PACKET_WRITE_TYPE(packet, s64, pkt->duration);
NNWT_PACKET_WRITE_TYPE(packet, s64, pkt->pos);
#ifndef CAMU_OLD_FFMPEG
NNWT_PACKET_WRITE_TYPE(packet, AVRational, pkt->time_base);
#endif
}
// @TODO: coded_side_data
// https://github.com/FFmpeg/FFmpeg/blob/f62d8789116fef8d8cd7f20062b16ccd93f7ce23/doc/APIchanges#L537
// https://ffmpeg.org/doxygen/8.0/structAVCodecParameters.html#ad54da9241deabb3601e6e0e8fa832c19
// #if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(60, 30, 100)
void nn_packet_read_av_codec_parameters(struct nn_packet *packet, AVCodecParameters *codecpar)
{
NNWT_PACKET_READ_TYPE(packet, enum AVMediaType, codecpar->codec_type);
NNWT_PACKET_READ_TYPE(packet, enum AVCodecID, codecpar->codec_id);
NNWT_PACKET_READ_TYPE(packet, u32, codecpar->codec_tag);
NNWT_PACKET_READ_TYPE(packet, s32, codecpar->extradata_size);
codecpar->extradata = (u8 *)av_malloc(codecpar->extradata_size);
u8 *extradata;
NNWT_PACKET_READ_DATA(packet, codecpar->extradata_size, extradata);
al_memcpy(codecpar->extradata, extradata, codecpar->extradata_size);
NNWT_PACKET_READ_TYPE(packet, s32, codecpar->format);
NNWT_PACKET_READ_TYPE(packet, s64, codecpar->bit_rate);
NNWT_PACKET_READ_TYPE(packet, s32, codecpar->bits_per_coded_sample);
NNWT_PACKET_READ_TYPE(packet, s32, codecpar->bits_per_raw_sample);
NNWT_PACKET_READ_TYPE(packet, s32, codecpar->profile);
NNWT_PACKET_READ_TYPE(packet, s32, codecpar->level);
NNWT_PACKET_READ_TYPE(packet, s32, codecpar->width);
NNWT_PACKET_READ_TYPE(packet, s32, codecpar->height);
NNWT_PACKET_READ_TYPE(packet, AVRational, codecpar->sample_aspect_ratio);
#if !defined CAMU_OLD_FFMPEG && LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(60, 11, 100)
NNWT_PACKET_READ_TYPE(packet, AVRational, codecpar->framerate);
#endif
NNWT_PACKET_READ_TYPE(packet, enum AVFieldOrder, codecpar->field_order);
NNWT_PACKET_READ_TYPE(packet, enum AVColorRange, codecpar->color_range);
NNWT_PACKET_READ_TYPE(packet, enum AVColorPrimaries, codecpar->color_primaries);
NNWT_PACKET_READ_TYPE(packet, enum AVColorTransferCharacteristic, codecpar->color_trc);
NNWT_PACKET_READ_TYPE(packet, enum AVColorSpace, codecpar->color_space);
NNWT_PACKET_READ_TYPE(packet, enum AVChromaLocation, codecpar->chroma_location);
NNWT_PACKET_READ_TYPE(packet, s32, codecpar->video_delay);
#ifndef CAMU_OLD_FFMPEG
enum AVChannelOrder order;
NNWT_PACKET_READ_TYPE(packet, enum AVChannelOrder, order);
if (order == AV_CHANNEL_ORDER_NATIVE) {
u64 ch_layout_mask;
NNWT_PACKET_READ_TYPE(packet, u64, ch_layout_mask);
av_channel_layout_from_mask(&codecpar->ch_layout, ch_layout_mask);
} else {
s32 nb_channels;
NNWT_PACKET_READ_TYPE(packet, s32, nb_channels);
av_channel_layout_default(&codecpar->ch_layout, nb_channels);
}
#else
NNWT_PACKET_READ_TYPE(packet, u64, codecpar->channel_layout);
NNWT_PACKET_READ_TYPE(packet, s32, codecpar->channels);
#endif
NNWT_PACKET_READ_TYPE(packet, s32, codecpar->sample_rate);
NNWT_PACKET_READ_TYPE(packet, s32, codecpar->block_align);
NNWT_PACKET_READ_TYPE(packet, s32, codecpar->frame_size);
NNWT_PACKET_READ_TYPE(packet, s32, codecpar->initial_padding);
NNWT_PACKET_READ_TYPE(packet, s32, codecpar->trailing_padding);
NNWT_PACKET_READ_TYPE(packet, s32, codecpar->seek_preroll);
}
enum AVCodecID nn_packet_read_av_codec_id(struct nn_packet *packet)
{
enum AVCodecID id;
NNWT_PACKET_READ_TYPE(packet, enum AVCodecID, id);
return id;
}
void nn_packet_read_av_dictionary(struct nn_packet *packet, AVDictionary **dict)
{
s32 count;
NNWT_PACKET_READ_TYPE(packet, s32, count);
for (s32 i = 0; i < count; i++) {
char *key, *value;
u32 len;
NNWT_PACKET_READ_TYPE(packet, u32, len);
NNWT_PACKET_READ_DATA(packet, len, key);
// Key and value MUST be allocated with av_malloc functions.
key = av_strndup(key, len);
NNWT_PACKET_READ_TYPE(packet, u32, len);
NNWT_PACKET_READ_DATA(packet, len, value);
value = av_strndup(value, len);
av_dict_set(dict, key, value, AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
}
}
AVStream *nn_packet_read_av_stream(AVFormatContext *format_context, const AVCodec *codec, struct nn_packet *packet)
{
AVStream *stream = avformat_new_stream(format_context, codec);
NNWT_PACKET_READ_TYPE(packet, s32, stream->index);
nn_packet_read_av_codec_parameters(packet, stream->codecpar);
NNWT_PACKET_READ_TYPE(packet, AVRational, stream->time_base);
NNWT_PACKET_READ_TYPE(packet, s64, stream->duration);
NNWT_PACKET_READ_TYPE(packet, s64, stream->start_time);
NNWT_PACKET_READ_TYPE(packet, s64, stream->nb_frames);
stream->metadata = NULL;
nn_packet_read_av_dictionary(packet, &stream->metadata);
NNWT_PACKET_READ_TYPE(packet, AVRational, stream->avg_frame_rate);
return stream;
}
void nn_packet_read_av_packet(struct nn_packet *packet, AVPacket *pkt)
{
NNWT_PACKET_READ_TYPE(packet, s64, pkt->pts);
NNWT_PACKET_READ_TYPE(packet, s64, pkt->dts);
NNWT_PACKET_READ_TYPE(packet, s32, pkt->size);
NNWT_PACKET_READ_DATA(packet, pkt->size, pkt->data);
NNWT_PACKET_READ_TYPE(packet, s32, pkt->stream_index);
NNWT_PACKET_READ_TYPE(packet, s32, pkt->flags);
s32 side_data_elems;
NNWT_PACKET_READ_TYPE(packet, s32, side_data_elems);
pkt->side_data_elems = 0;
for (s32 i = 0; i < side_data_elems; i++) {
u8 *data;
enum AVPacketSideDataType type;
s64 storage_for_size;
NNWT_PACKET_READ_TYPE(packet, s64, storage_for_size);
al_assert(sizeof(size_t) > 4 || storage_for_size <= INT32_MAX);
size_t size = (size_t)storage_for_size;
NNWT_PACKET_READ_DATA(packet, size, data);
NNWT_PACKET_READ_TYPE(packet, enum AVPacketSideDataType, type);
u8 *side_data = av_packet_new_side_data(pkt, type, size);
al_memcpy(side_data, data, size);
}
NNWT_PACKET_READ_TYPE(packet, s64, pkt->duration);
NNWT_PACKET_READ_TYPE(packet, s64, pkt->pos);
#ifndef CAMU_OLD_FFMPEG
NNWT_PACKET_READ_TYPE(packet, AVRational, pkt->time_base);
#endif
}
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