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Merge commit '0711d142997b2662ba9198e607015b06c6eed0d8'
* commit '0711d142997b2662ba9198e607015b06c6eed0d8': examples: Use new API for transcoding example Merged-by: James Almer <jamrial@gmail.com>
This commit is contained in:
commit
75aa14b870
@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2013-2017 Andreas Unterweger
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* Copyright (c) 2013-2018 Andreas Unterweger
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*
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* This file is part of FFmpeg.
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*
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@ -387,24 +387,39 @@ static int decode_audio_frame(AVFrame *frame,
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}
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}
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/* Decode the audio frame stored in the temporary packet.
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* The input audio stream decoder is used to do this.
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* If we are at the end of the file, pass an empty packet to the decoder
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* to flush it. */
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if ((error = avcodec_decode_audio4(input_codec_context, frame,
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data_present, &input_packet)) < 0) {
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fprintf(stderr, "Could not decode frame (error '%s')\n",
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/* Send the audio frame stored in the temporary packet to the decoder.
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* The input audio stream decoder is used to do this. */
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if ((error = avcodec_send_packet(input_codec_context, &input_packet)) < 0) {
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fprintf(stderr, "Could not send packet for decoding (error '%s')\n",
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av_err2str(error));
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av_packet_unref(&input_packet);
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return error;
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}
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/* If the decoder has not been flushed completely, we are not finished,
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* so that this function has to be called again. */
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if (*finished && *data_present)
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*finished = 0;
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/* Receive one frame from the decoder. */
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error = avcodec_receive_frame(input_codec_context, frame);
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/* If the decoder asks for more data to be able to decode a frame,
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* return indicating that no data is present. */
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if (error == AVERROR(EAGAIN)) {
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error = 0;
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goto cleanup;
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/* If the end of the input file is reached, stop decoding. */
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} else if (error == AVERROR_EOF) {
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*finished = 1;
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error = 0;
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goto cleanup;
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} else if (error < 0) {
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fprintf(stderr, "Could not decode frame (error '%s')\n",
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av_err2str(error));
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goto cleanup;
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/* Default case: Return decoded data. */
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} else {
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*data_present = 1;
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goto cleanup;
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}
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cleanup:
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av_packet_unref(&input_packet);
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return 0;
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return error;
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}
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/**
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@ -538,7 +553,7 @@ static int read_decode_convert_and_store(AVAudioFifo *fifo,
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AVFrame *input_frame = NULL;
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/* Temporary storage for the converted input samples. */
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uint8_t **converted_input_samples = NULL;
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int data_present;
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int data_present = 0;
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int ret = AVERROR_EXIT;
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/* Initialize temporary storage for one input frame. */
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@ -551,7 +566,7 @@ static int read_decode_convert_and_store(AVAudioFifo *fifo,
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/* If we are at the end of the file and there are no more samples
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* in the decoder which are delayed, we are actually finished.
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* This must not be treated as an error. */
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if (*finished && !data_present) {
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if (*finished) {
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ret = 0;
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goto cleanup;
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}
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@ -637,7 +652,7 @@ static int64_t pts = 0;
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* @param output_format_context Format context of the output file
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* @param output_codec_context Codec context of the output file
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* @param[out] data_present Indicates whether data has been
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* decoded
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* encoded
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* @return Error code (0 if successful)
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*/
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static int encode_audio_frame(AVFrame *frame,
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@ -656,29 +671,50 @@ static int encode_audio_frame(AVFrame *frame,
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pts += frame->nb_samples;
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}
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/* Encode the audio frame and store it in the temporary packet.
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/* Send the audio frame stored in the temporary packet to the encoder.
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* The output audio stream encoder is used to do this. */
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if ((error = avcodec_encode_audio2(output_codec_context, &output_packet,
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frame, data_present)) < 0) {
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fprintf(stderr, "Could not encode frame (error '%s')\n",
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error = avcodec_send_frame(output_codec_context, frame);
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/* The encoder signals that it has nothing more to encode. */
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if (error == AVERROR_EOF) {
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error = 0;
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goto cleanup;
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} else if (error < 0) {
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fprintf(stderr, "Could not send packet for encoding (error '%s')\n",
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av_err2str(error));
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av_packet_unref(&output_packet);
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return error;
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}
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/* Write one audio frame from the temporary packet to the output file. */
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if (*data_present) {
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if ((error = av_write_frame(output_format_context, &output_packet)) < 0) {
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fprintf(stderr, "Could not write frame (error '%s')\n",
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av_err2str(error));
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av_packet_unref(&output_packet);
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return error;
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}
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av_packet_unref(&output_packet);
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/* Receive one encoded frame from the encoder. */
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error = avcodec_receive_packet(output_codec_context, &output_packet);
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/* If the encoder asks for more data to be able to provide an
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* encoded frame, return indicating that no data is present. */
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if (error == AVERROR(EAGAIN)) {
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error = 0;
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goto cleanup;
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/* If the last frame has been encoded, stop encoding. */
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} else if (error == AVERROR_EOF) {
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error = 0;
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goto cleanup;
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} else if (error < 0) {
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fprintf(stderr, "Could not encode frame (error '%s')\n",
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av_err2str(error));
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goto cleanup;
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/* Default case: Return encoded data. */
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} else {
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*data_present = 1;
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}
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return 0;
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/* Write one audio frame from the temporary packet to the output file. */
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if (*data_present &&
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(error = av_write_frame(output_format_context, &output_packet)) < 0) {
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fprintf(stderr, "Could not write frame (error '%s')\n",
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av_err2str(error));
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goto cleanup;
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}
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cleanup:
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av_packet_unref(&output_packet);
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return error;
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}
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/**
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@ -816,6 +852,7 @@ int main(int argc, char **argv)
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int data_written;
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/* Flush the encoder as it may have delayed frames. */
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do {
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data_written = 0;
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if (encode_audio_frame(NULL, output_format_context,
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output_codec_context, &data_written))
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goto cleanup;
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