X-Git-Url: https://git.ao2.it/libam7xxx.git/blobdiff_plain/abc5e4d69e40d0edb62d4a084a33dc27f1aa712d..2f9553ff3efdbd00111e90774fd90907a2e45200:/examples/am7xxx-play.c?ds=sidebyside diff --git a/examples/am7xxx-play.c b/examples/am7xxx-play.c index 6d5d3c7..f63fbfd 100644 --- a/examples/am7xxx-play.c +++ b/examples/am7xxx-play.c @@ -1,7 +1,7 @@ /* * am7xxx-play - play stuff on an am7xxx device (e.g. Acer C110, PicoPix 1020) * - * Copyright (C) 2012 Antonio Ospite + * Copyright (C) 2012-2014 Antonio Ospite * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -223,8 +223,8 @@ static int video_output_init(struct video_output_ctx *output_ctx, goto out; } - output_codec_ctx->pix_fmt = PIX_FMT_YUVJ420P; - output_codec_ctx->codec_id = CODEC_ID_MJPEG; + output_codec_ctx->pix_fmt = AV_PIX_FMT_YUVJ420P; + output_codec_ctx->codec_id = AV_CODEC_ID_MJPEG; output_codec_ctx->codec_type = AVMEDIA_TYPE_VIDEO; /* Set quality and other VBR settings */ @@ -285,10 +285,13 @@ static int am7xxx_play(const char *input_format_string, int out_buf_size; uint8_t *out_buf; int out_picture_size; + uint8_t *out_picture; struct SwsContext *sw_scale_ctx; - AVPacket packet; + AVPacket in_packet; + AVPacket out_packet; int got_picture; - int ret = 0; + int got_packet; + int ret; ret = video_input_init(&input_ctx, input_format_string, input_path, input_options); if (ret < 0) { @@ -303,7 +306,7 @@ static int am7xxx_play(const char *input_format_string, } /* allocate an input frame */ - picture_raw = avcodec_alloc_frame(); + picture_raw = av_frame_alloc(); if (picture_raw == NULL) { fprintf(stderr, "cannot allocate the raw picture frame!\n"); ret = -ENOMEM; @@ -311,7 +314,7 @@ static int am7xxx_play(const char *input_format_string, } /* allocate output frame */ - picture_scaled = avcodec_alloc_frame(); + picture_scaled = av_frame_alloc(); if (picture_scaled == NULL) { fprintf(stderr, "cannot allocate the scaled picture!\n"); ret = -ENOMEM; @@ -351,9 +354,10 @@ static int am7xxx_play(const char *input_format_string, goto cleanup_out_buf; } + got_packet = 0; while (run) { /* read packet */ - ret = av_read_frame(input_ctx.format_ctx, &packet); + ret = av_read_frame(input_ctx.format_ctx, &in_packet); if (ret < 0) { if (ret == (int)AVERROR_EOF || input_ctx.format_ctx->pb->eof_reached) ret = 0; @@ -363,7 +367,7 @@ static int am7xxx_play(const char *input_format_string, goto end_while; } - if (packet.stream_index != input_ctx.video_stream_index) { + if (in_packet.stream_index != input_ctx.video_stream_index) { /* that is more or less a "continue", but there is * still the packet to free */ goto end_while; @@ -371,18 +375,18 @@ static int am7xxx_play(const char *input_format_string, /* decode */ got_picture = 0; - ret = avcodec_decode_video2(input_ctx.codec_ctx, picture_raw, &got_picture, &packet); + ret = avcodec_decode_video2(input_ctx.codec_ctx, picture_raw, &got_picture, &in_packet); if (ret < 0) { fprintf(stderr, "cannot decode video\n"); run = 0; goto end_while; } - /* if we get the complete frame */ + /* if we got the complete frame */ if (got_picture) { /* convert it to YUV */ sws_scale(sw_scale_ctx, - (const uint8_t * const*)picture_raw->data, + (const uint8_t * const *)picture_raw->data, picture_raw->linesize, 0, (input_ctx.codec_ctx)->height, @@ -390,20 +394,26 @@ static int am7xxx_play(const char *input_format_string, picture_scaled->linesize); if (output_ctx.raw_output) { + out_picture = out_buf; out_picture_size = out_buf_size; } else { picture_scaled->quality = (output_ctx.codec_ctx)->global_quality; - /* TODO: switch to avcodec_encode_video2() eventually */ - out_picture_size = avcodec_encode_video(output_ctx.codec_ctx, - out_buf, - out_buf_size, - picture_scaled); - if (out_picture_size < 0) { + av_init_packet(&out_packet); + out_packet.data = NULL; + out_packet.size = 0; + got_packet = 0; + ret = avcodec_encode_video2(output_ctx.codec_ctx, + &out_packet, + picture_scaled, + &got_packet); + if (ret < 0 || !got_packet) { fprintf(stderr, "cannot encode video\n"); - ret = out_picture_size; run = 0; goto end_while; } + + out_picture = out_packet.data; + out_picture_size = out_packet.size; } #ifdef DEBUG @@ -414,16 +424,16 @@ static int am7xxx_play(const char *input_format_string, else snprintf(filename, NAME_MAX, "out.raw"); file = fopen(filename, "wb"); - fwrite(out_buf, 1, out_picture_size, file); + fwrite(out_picture, 1, out_picture_size, file); fclose(file); #endif - ret = am7xxx_send_image(dev, - image_format, - (output_ctx.codec_ctx)->width, - (output_ctx.codec_ctx)->height, - out_buf, - out_picture_size); + ret = am7xxx_send_image_async(dev, + image_format, + (output_ctx.codec_ctx)->width, + (output_ctx.codec_ctx)->height, + out_picture, + out_picture_size); if (ret < 0) { perror("am7xxx_send_image"); run = 0; @@ -431,16 +441,18 @@ static int am7xxx_play(const char *input_format_string, } } end_while: - av_free_packet(&packet); + if (!output_ctx.raw_output && got_packet) + av_free_packet(&out_packet); + av_free_packet(&in_packet); } sws_freeContext(sw_scale_ctx); cleanup_out_buf: av_free(out_buf); cleanup_picture_scaled: - av_free(picture_scaled); + av_frame_free(&picture_scaled); cleanup_picture_raw: - av_free(picture_raw); + av_frame_free(&picture_raw); cleanup_output: /* av_free is needed as well, @@ -544,7 +556,7 @@ static int set_signal_handler(void (*signal_handler)(int)) { struct sigaction new_action; struct sigaction old_action; - int ret = 0; + int ret; new_action.sa_handler = signal_handler; sigemptyset(&new_action.sa_mask); @@ -581,6 +593,7 @@ static void usage(char *name) { printf("usage: %s [OPTIONS]\n\n", name); printf("OPTIONS:\n"); + printf("\t-d \t\tthe device index (default is 0)\n"); printf("\t-f \tthe input device format\n"); printf("\t-i \t\tthe input path\n"); printf("\t-o \t\ta comma separated list of input format options\n"); @@ -598,8 +611,8 @@ static void usage(char *name) AM7XXX_POWER_OFF, AM7XXX_POWER_TURBO); printf("\t\t\t\tWARNING: Level 2 and greater require the master AND\n"); printf("\t\t\t\t the slave connector to be plugged in.\n"); - printf("\t-z \t\tthe display zoom mode, between %d (original) and %d (test)\n", - AM7XXX_ZOOM_ORIGINAL, AM7XXX_ZOOM_TEST); + printf("\t-z \t\tthe display zoom mode, between %d (original) and %d (tele)\n", + AM7XXX_ZOOM_ORIGINAL, AM7XXX_ZOOM_TELE); printf("\t-h \t\t\tthis help message\n"); printf("\n\nEXAMPLES OF USE:\n"); printf("\t%s -f x11grab -i :0.0 -o video_size=800x480\n", name); @@ -622,14 +635,23 @@ int main(int argc, char *argv[]) unsigned int upscale = 0; unsigned int quality = 95; int log_level = AM7XXX_LOG_INFO; - am7xxx_power_mode power_mode = AM7XXX_POWER_LOW; - am7xxx_zoom_mode zoom = AM7XXX_ZOOM_ORIGINAL; + int device_index = 0; + int power_mode = AM7XXX_POWER_LOW; + int zoom = AM7XXX_ZOOM_ORIGINAL; int format = AM7XXX_IMAGE_FORMAT_JPEG; am7xxx_context *ctx; am7xxx_device *dev; - while ((opt = getopt(argc, argv, "f:i:o:s:uF:q:l:p:z:h")) != -1) { + while ((opt = getopt(argc, argv, "d:f:i:o:s:uF:q:l:p:z:h")) != -1) { switch (opt) { + case 'd': + device_index = atoi(optarg); + if (device_index < 0) { + fprintf(stderr, "Unsupported device index\n"); + ret = -EINVAL; + goto out; + } + break; case 'f': input_format_string = strdup(optarg); break; @@ -644,7 +666,7 @@ int main(int argc, char *argv[]) * draw_mouse=1,framerate=100,video_size=800x480 */ subopts = subopts_saved = strdup(optarg); - while((subopt = strtok_r(subopts, ",", &subopts))) { + while ((subopt = strtok_r(subopts, ",", &subopts))) { char *subopt_name = strtok_r(subopt, "=", &subopt); char *subopt_value = strtok_r(NULL, "", &subopt); if (subopt_value == NULL) { @@ -736,19 +758,20 @@ int main(int argc, char *argv[]) case AM7XXX_ZOOM_H: case AM7XXX_ZOOM_H_V: case AM7XXX_ZOOM_TEST: + case AM7XXX_ZOOM_TELE: fprintf(stdout, "Zoom: %d\n", zoom); break; default: fprintf(stderr, "Invalid zoom mode value, must be between %d and %d\n", - AM7XXX_ZOOM_ORIGINAL, AM7XXX_ZOOM_TEST); - exit(EXIT_FAILURE); + AM7XXX_ZOOM_ORIGINAL, AM7XXX_ZOOM_TELE); + ret = -EINVAL; + goto out; } break; case 'h': usage(argv[0]); ret = 0; goto out; - break; default: /* '?' */ usage(argv[0]); ret = -EINVAL; @@ -757,7 +780,8 @@ int main(int argc, char *argv[]) } if (input_path == NULL) { - fprintf(stderr, "The -i option must always be passed\n"); + fprintf(stderr, "The -i option must always be passed\n\n"); + usage(argv[0]); ret = -EINVAL; goto out; } @@ -797,7 +821,7 @@ int main(int argc, char *argv[]) am7xxx_set_log_level(ctx, log_level); - ret = am7xxx_open_device(ctx, &dev, 0); + ret = am7xxx_open_device(ctx, &dev, device_index); if (ret < 0) { perror("am7xxx_open_device"); goto cleanup;